[merijnv]

Not really, no. I had one of the original iPhones and with heavy 3G usage the battery drains like nobody's business (it barely lasted half a day if I used it to stream music on the train to work). Right now I have a HTC Dream (also known as the G1) which lasts slightly over a day. Newer iPhones and Androids seem to last a bit longer, but not much. Its the price you pay for internet connectivity...

[yardie]

Newer phones are almost all battery with just a sliver for a motherboard. The iPhone4 in particular uses a microsim because they, physically, do not have the space for a larger sim.[1] I'm also getting great use out of it, the battery lasts 2.5 days with moderate usage. Which is something I haven't been able to do with a Verizon Droid Incredible.

http://guide-images.ifixit.net/igi/IP1qEpYFQSSqwSbg.medium