iPhone is missing:
* Multitasking
* Native Calendar and Contacts sync with third party
* Native Copy-Paste (aargh!)
* Native IM client
* Landscape native email mode (arrgh!)
* Street view

G1 is missing:
* Onscreen keyboard
* iPod/Video/Podcast workflow (iTunes)
* Balanced UI and UX
* Standard headphones output

Today I’m getting my G1 and will post a complete review after I do a deep dive.