I just picked up my Android phone and love it so far. I had the choice between the My TOUCH and the g1 with T-Mobile and even though the My Touch has more ram I did not want to be stuck with only the virtual keyboard, so I got the G1 with its slider keyboard.
I am typing this on my G1’s keyboard and don’t think I would be able to on a virtual keyboard with my big fingers,
First thing I noticed is when you first setup your G phone is it asks you to log into your google account or create one, Then it pulls down all your contact info into the phones contact list. It also sets up your gmail account on your home page, But your not stuck with just your gmail account, there is also a mail app that works with your yahoo, hotmail/live, imap/pop3 accounts. Allowing you to assign 5 email accounts.
There seems to be an app for just about anything you want to do. I will get into the apps in more detail later but right now my favorite apps are
DxTop a home page replacement
Nav Launcher launches google maps in navigator mode.
WPToGo A WP blog app
Shazam Song tagging. Identify the song that is playing and buy it from Amazon if you would like