News on the BBC that the top request for the most desirable feature of next generation mobile devices is a Long life mobile battery.
Interestingly, 2 days life was the most popular request, something I'd be happy with on my mobile. It now struggles with a day if I'm lucky, which means remembering to put it on charge every night this week if I'm to keep in touch with the world outside of Hammersmith 
Other requests, with over half, was more memory, and in the case of mobile phones, better resolution cameras. It's hard to imagine a phone without a camera, and yet this is still a fairly recent thing. I can still remember 1 megapixel digital cameras being new and exciting, and now you can get a free mobile with two high res cameras 
What I want is a mobile phone, with a decent camera, speedy GPRS/Data connection, and enough memory for my calendar, contacts, and pics of my brothers fooling around on a night out All of this squeezed into a space the size of my current phone, the Nokia 7650. And I can see that being a reality now. Hurrah 
