Introduced as "OPK", Olli-Pekka Kallasvuo, the president and CEO of Nokia opened the Nokia World event for 2009 by admitting the world's biggest phone maker has had "ups and downs" of late.

"We've had our ups and downs, but, hey that's life", said Kallasvuo. "Not everything is going to be a success right from the start. That's okay, as long as we learn".

"We still have a lot of work to do but we have a solid plan in place", Kallasvuo assured the audience, made up of industry partners and press.

With the comments perhaps referring to the company's slow start in the touchscreen market, Nokia is quick with figures that suggest success for the new line of touchscreen devices.

Nokia's CEO revealed on stage at the packed event that the N97 is selling faster than the N95 and its touchscreen phones have seen 10 million sales in 10 months.

Looking forward, Kallasvuo promises that the recently-announced Maemo-based N900 is the "best browsing device" he has seen. The new tablet handset will offer a Mozilla-made mobile browser.

And, the Nokia exec says that the N900 and also recently announced Booklet 3G are "just the start" for Nokia, promising to "expand boundaries of mobility" with future products.