We've mentioned the original, FREE, MobileFiles application before, which lets you access MobileMe's iDisk via the iPhone. Well, now we've also got MobileFiles Pro and along with the $9.99 price tag comes a killer feature that a lot of productivity mavens have no doubt been waiting for:

EDIT! native Microsoft Excel 2003 documents just as you would on your desktop. Save the edited Excel file on your iPhone, send to your iDisk account remotely, or upload to your desktop using WiFi - all while maintaining perfect data integrity.

MobileFiles Pro is developed by QuickOffice, so this definitely makes the kind of sense that does. The only question is: when will Word and PowerPoint editing follow?

Have you tried MobileFiles yet? If so, let us know what you think!