I too am tempted to delete 3.5.1, maybe move to 3.2, or maybe try to find SL-5000D stock ROMs somewhere. I don't know where though.
Here's what I want to do with my Zaurus. If I can do these things, I'll be happy. Maybe you know how to make them work for me.
1. I want to be able to use the GUI package manager to install stuff. I'd like it to see the.ipk files I have in /mnt/card/Documents/Install_files (paraphrasing, may be spelled wrong) and I want it to resolve dependencies automatically if I have the correct .ipk files present to resolve them.
2. I want wireless to be set up so that I can also install stuff from the net.
3. I want to install the Hancom apps, including their image editor.
4. I want Opera or another browser, and a simple GUI FTP program.
5. I want to still be able to swap in a different SD card-- that is, I don't mind quitting all my apps before swapping, as long as I can copy files from the new SD card. So I don't mind having my apps installed on an SD card, although I think I have to have my home directory in RAM. I've got the 24/8 configuration of OZ in there right now.
If I can get these 5 things to work, then I can take a picture with my camera, copy the image from the camera's SD card to the Zaurus, edit the image, upload it to the web, look and see that it's there, and then write an OpenOffice-compatible document or spreadsheet. All from a cafe.
But under OZ 3.5.1 I can't install anything! Should I move to 3.2 or the stock ROM? Where can I find them?