Notified Pro + NotificationGriP (I put them together because I mostly find NotificationGriP to be the useful app but you can't have it without first buying Notified Pro)
You guys are awesome! I just jail broke my iPhone4 and I'm salivating at all the awesome apps that you're recommending! I'm just sad that my feeding frenzy of awesomeness is tempered by my tethered 4.2.1 jailbreak. The tethering part isn't that big of a deal but the fact that so many recommended apps are not updated for my OS makes me sad
I'm most looking forward to BiteSMS getting updated because it seems like it's the bee's knees! Sadly, the current version puts my iPhone into Safe Mode every time I get a text. I read on their forum that it's working in the current beta so hopefully the official release will arrive soon!