I noted sometime back that Lenses was free (for now) over on Twitter so downloaded it.  It's a camera applcation after all.  I've hesitated to upgrade the iPhone to iOS4 as I've been paying way too much attention to the problems associated with said upgrades.  After taking nearly a week to first get the iPhone to sync with my desktop, I'm incredibly hesitant to attach it to same for upgrade. This has been a good thing as the Lenses application - when I first installed it - was not available if you had iOS4.  So I did a 'Before' shot:

Before iOS4.0.2

And once I upgraded the iPhone to iOS4(.0.2), I had to take an "After":

After iOS4.0.2

I'm rather pleased the application still works and now I'll have to explore the variety of lens effects possible - I've only used the mirror one thus far.