Basically everything from the Tour 9630 is compatible with the Bold. Batteries, chargers, pods, cables, cases, etc. Only issues I have read about so far are with some skins, due to the slight move of the micro usb port. I'm using all the accessories I had from the Tour without any issues.
Posted from my CrackBerry at wapforums.crackberry.com
I am still able to use my OEM rubber case and my Incipio. The only issue I have with them is sometimes my charger will fall out because of the already mentioned slight movement of the charging port.