I noticed earlier today that I had an update to LockInfo in Cydia. I read through it and everything seemed fine to upgrade, so I did. Then I started noticing that I wasn't getting notifications of new text messages. I normally use BiteSMS, so I turned it off and asked someone to send me a text while I was using the stock SMS app. Same result...no notification (audible or pop-up...I was getting the status bar notifications, though). I had a bunch of changes in Cydia when I checked earlier, so I started thinking about which ones I'd done and remembered that one was LockInfo. I decided to uninstall it through Cydia and when I resprang the phone, everything was working perfectly again, both with the stock SMS app and BiteSMS. I'm not sure why it's doing this. I've been using LockInfo and BiteSMS together for a long time, but now there seems to be a conflict. I thought someone else might be having the same issue and this would help.