Originally Posted by iMerlin
For a while I was getting a lot of safe mode crashes also, but for some reason its been stable for a while now. Maybe it was the mobile substrate update about a week ago. Either way, I havent seen safe mode in a while.
I did recently update my Multibar Lockscreen but for some reason cant get the slide to unlock to show up, or tap to unlock for that matter...

Hmmm. Now that I think about it, I haven't had
any safe mode issues on my 3G for at least a week now. Maybe I'll JB the 3GS this week and give it another shot.
As far as the slide to unlock prob, certain lockscreens will hide it. Try installing
a better tap to unlock in Cydia and dragging it to the top of the list in Winterboard.