Motorola i870 / i875

I currently have the i860. Decent phone I guess. But one thing that really pisses me off is the battery life of my i860. I can't go a day with out charging it. And im not a big talker.

So my question(s) to the old i860 owners and now i870 owners is the battery life better? How is the megapix camera? I read that there is an actuall alarm if i have my phone on vibrate will it still alarm?

Thanks in advance.