ok so iv been wanting an N900 since it first dropped in the US. finally i bought one by impulse last week off ebay and hope to get it this week. i have been reading and have some questions... some may seem simple, but im new to this so dont be too hard on me

1. what is PR1.2? i understand that its an update. if so, what will be new about it?

2. everyone talks about debian. i know its an OS. why would i want or need this on my phone?

3. when MeeGo comes out will we be able to have it on the N900... i guess what i mean is, was my purchase a tad hasty? would i have been better off waiting for whatever phone they release with meego?

4. whats the app that lets me change LED colours depending on the notification? i have to say that having different colour LEDs for differnt things is one of the best features of my blackberry

5. how do emails and facebook notifications come through to the phone? becuase on my blackberry they come to the inbox like a txt instantly. is N900 the same?

....im sure more questions will arise. but i cant think of any for now.
anyway, i cannot wait to get my N900

any help appreciated!