A couple of posts that really show how far mobile has come in such a short space of time
http://www.webdesignerdepot.com/2009/05/the-evolution-of-cell-phone-design-between-1983-2009/
Nokia graphic showing them leading innovation,though sometimes maybe a little too early!
http://www.geekstir.com/wp-content/uploads/2009/10/evophones2.jpg
Seems a long time ago that I was developing on the Nokia 7210, for the simple reason, that although it was not the best phone available at the time, it was excellent to code for because Nokias emulator actually realistically emulated heap memory usage, which was the achilles heel at the time (along with 64kb Jar limits)