I'm due for an upgrade. I currently have the env 3. I plan to use the phone for apps and the internet mostly. I don't make many phone calls (less than 20-30 min/day) and don't expect to use it a ton. i would like for it to have a great battery life and probably an actual keyboard (but not a necessity). what would be the best model? is there a model coming out soon i should consider? i keep hearing rumors about an iphone, should i wait for this (would i be waiting forever?? lol)? also i have been reading about a tiered data plan, since i don't expect to be using it constantly, are chances most likely that the plan for me with be less than $30/month?