I'm a Symbian/Blackberry/WinMo Expert/Addict but I've never used Linux in my life.

Now can people give me tips as to what the first things to do when I get my N900 are (hopefully friday) and post links to relevant articles?

P.S. I reallly can't find anything similar...

Any help would be great because I'm worried I'll probably f*** the phone up quickly by doing something lol (with BB/WinMo/Symbian I know how to fix it quickly so its ok but Linux/Maemo is brand new to me!)