I've got a GSM Galaxy Nexus. I picked up a 3.5 Amp-Hr battery on amazon, and the phone lasts 3-4 days on a charge now. It's a massive quality-of-life improvemen

I've got a GSM Galaxy Nexus. I picked up a 3.5 Amp-Hr battery on amazon, and the phone lasts 3-4 days on a charge now. It's a massive quality-of-life improvement. The only things I switch on/off are GPS and wifi. The fact that you still have to turn off GPS and wifi to get 3 days battery life with a 3500mAh battery sort of proves the original point. Most importantly, I can avoid the iTunes ecosystem now. I can stream my music on my work linux box, off my phone, or any other device I want. That's funny because in Canada, iTunes is the only realistic way to buy digital music on a smartphone. On Android I really missed Sound-hounding a song, and then clicking on the link to buy it in iTunes instantly. My 4G Xoom dies really quickly with 4g on. it's kept me off of 4g as a technology for at least a year. I don't have 4G, but a friend has an iPhone 5 and even though he's always on 4G he gets great battery life. YMMV.