Few questions about Rock bands and Guitar heros..

[Arcturus]

1. You have to pay a small fee ($5) to transfer RB1 songs to RB2, so you'd need access to PSN.
2. Yes
3. Yes
4. Yes
5. No
6. Others have said they've improved somewhat. I'm still using my RB1 instruments.

http://www.joystiq.com/Instrument-Compatibility-Matrix/

PlayStation 3
Guitar Hero: World Tour drums	Yes	No13	N/A	No13	N/A	Yes7
Rock Band drums	Yes9	Yes	N/A	Yes	N/A	?
Rock Band 2 drums	Yes7	Yes	N/A	Yes	N/A	Yes7
Rock Revolution drums	Yes7	Yes7	N/A	Yes	N/A	Yes
ION Drum Rocker drums	Maybe7,14	Yes	N/A	Yes	N/A	M

 

PlayStation 3
Guitar Hero: World Tour Generi-caster	Yes	Yes7	Yes3	Yes	Yes3	Yes7
Rock Band 2 Stratocaster	Yes7	Yes	No2,3	Yes	No2,3	Yes7
Guitar Hero: Aerosmith Les Paul	Yes3	Maybe3,5	Yes	Maybe5	Yes	?
Rock Band Stratocaster	Yes9	Yes	No2	Yes	No	?
Guitar Hero 3 Les Paul	Yes3	Yes	Yes	Yes5	Yes