Version 1.0.4 has been approved and is now ready for sale. I strongly recommend updating to this version since it fixes the crash in OS 3.1.3. I also added a few levels, bringing the total number of levels up to 87.
I got a refurbished iPod Touch that still has iOS 3 for testing & development. I’ve verified that Removr 1.0.4 does indeed run with no problems in 3.1.3, as well as the rest of my apps.