The London market put in an edgy performance today as a fresh surge by mining stocks failed to produce significant progress for the FTSE 100 Index.

Mobile phone group mmO2 today beat expectations for new users over Christmas following a surge in demand for pre-pay deals.

IONA TECHNOLOGIES is back in the black.

Nortel and O2’s parent company mmO2 has successfully completed a series of live wireless calls using a newly emerging broadband technology that can deliver dramatically faster and more sophisticated wireless services.

The FTSE 100 Index made a return to positive territory today despite significant falls by a clutch of mining stocks.

The twin threat to the British economy of high oil prices and a weak US dollar deterred investors from buying UK stocks today.

A further weakening in the dollar left the London market in downbeat mode today as companies with a strong presence in the United States suffered.

Mobile phone group mmO2 is to trial technology allowing users to download music, video clips and games three times faster than existing third generation networks, it said today.

The FTSE 100 Index drifted lower today as a lack of major corporate news and a subdued session in New York combined to keep investors on the sidelines.

The threat to investor confidence from rising oil prices was exposed today as the London market racked up heavy losses for a second session in a row.

The value of London’s 100 leading stocks fell further today after the weak dollar and a pick-up in the price of oil dealt a double blow to investors.

British Telecom today said Vodafone would replace its former subsidiary mmO2 as the network supplier for its fledgling mobile operation.

London shares drove beyond the 4800 barrier today as a slowdown in retail sales offered a further signal that interest rates may have peaked.

Virgin Mobile stuck by forecasts for annual profits today in spite of the prospect of weaker margins and revenues growth over Christmas.

The London market closed just shy of the key 4800 level today after a big retail deal boosted spirits on Wall Street.

London shares achieved slim gains today after economic news fuelled talk that interest rates would stay on hold for the rest of this year.

Mobile phone group mmO2 cheered investors today with news that it intends to pay a maiden dividend next year.

British Airways was the big loser on the London market today as the price of crude soared to new heights.

Hopes of an end to the London market’s week-long losing streak were wrecked today by a poor session for insurers and another oil price hike.

MmO2 yesterday reported first half revenue growth ahead of expectations.

Profit takers pounced on blue-chip stocks today as a downbeat opening on Wall Street sparked a late sell-off on this side of the Atlantic.

The FTSE 100 Index followed the lead of other world markets to break through the 4600 barrier today.

MmO2 today reported first half revenue growth ahead of expectations, but warned of a significant slowdown in the second six months of the year.

Mobile phone group mmO2 today moved into the market for 3G technology in the UK with the launch of a high-speed datacard.

One of the key figures in Marks & Spencer’s successful takeover defence this summer has extended his stay at the company, it emerged today.

O2 today announced it has signed a two year sponsorship extension with Arsenal.

The London market lost some of its new-found momentum today as investors worried about higher interest rates.

A string of corporate updates was giving London shares plenty of forward momentum today as the FTSE 100 Index put back some of its recent losses.

Mobile operator O2 Ireland has reported a rise in its customer numbers for the quarter to the end of June.

Richard Branson is unlikely to go ahead with plans to float Virgin Mobile on the stock market unless he gets the right price, it was reported today.

Virgin Mobile may be forced to cut its flotation price because of a lacklustre response from investors, it was reported today.

Mobile phone group mmO2 pledged today to review its cautious stance on dividends after posting maiden full-year profits of £95m (€139.6m).

Companies in the telecoms and energy sectors will be among UK market heavyweights updating investors on their progress this week.

The London market set aside high oil prices to stage an afternoon fightback today but still ended the session in negative territory.

The London market was dragged down by a poor performance across the Atlantic today as concerns over rising oil prices and interest rates weighed heavily.

The London stock market suffered its worst session in more than a month today as worries over US interest rates and oil prices hit confidence.

Dutch telecoms group KPN has reported substantial profits after a year of heavy cost-cutting.

The former wireless unit of British Telecommunications and major European mobile phone company, mmO2, has said it expects its annual core earnings to meet market forecasts of £1.34 bn (€2.00bn).

Four of Europe's biggest mobile phone firms have announced an alliance, as the increasing demand for international roaming services drives providers to work together more closely.

The ISEQ in Dublin was up 34 points to 5160 just before 11am today on fairly sluggish Monday morning volume.

Dutch telecoms group KPN has not ruled out a hostile bid for mobile phone group MmO2 after the latest round of takeover talks ended, reports The Irish Times today.

Mobile phone group Orange revenues increased by 9% last year.

Leading mobile operator O2 Ireland has reported 96,000 new customers in its third quarter to the end of December, bringing its customer base to 1.37 million.