Greetings Allen and welcome to AximUsers.
1. The X30 will never run WM5. WM5 requires fundamental hardware differences from WM2003 devices. Dell tried to develop WM5 for the X50, which is actually a WM2003 hardware device, and gave up on it.
2. It is possible to change the language but it isn't for the non-technical. There's a good thread over at
Aximsite that has instructions.
3. You can sync folders/files to your storage card using a free program called
Easy Sync. This is a feature that MS oddly overlooked in ActiveSync.
4. You can have as many PPCs syncing with a file as you want. If your inventory file is a database, you'll need to stop the database before syncing.
Enjoy the X30, it's a great PDA.
--Mahstah