I'll just list them to make it easier to answer. 1. What does MC stand for? I see it in the forums here but I'm a bit confused. 2. Is there not an iOS4 public release jailbreak yet? I noticed there is a jailbreak for the GM release? * I have a 2G iPod Touch 3. If I chose to jailbreak, will Cydia be on there for good or can I opt to not have it? 4. Anything else I need to know about iOS4 for the 2G and a jailbreak? (I already know that background wallpapers and multitasking aren't supported). Thanks again!