I did. I have given up on homebrew since firmware 2.7 got released. I was still interested in homebrew, but my interest slowly faded away when I saw the dozens of homebrew firmwares getting released by Dark_Alex and lots of others. I just lost track of everything, I don't know what homebrew is available, which ones are good or not good. On top of it all, there are hardly good homebrew apps available, nothing interests me ... on the exception of a few.
The current firmware on my PSP is 3.5 so I still have an open spot to use homebrew (using the Lumines trick/hack/whatever) but in all honesty, I'll probably never go back to homebrew. Besides, I feel like it's getting too risky now.