The Apple MobileMe service has gained some value since yesterday with the launch of the MobileMe iDisk for the iPhone.
The new MobileMe iDisk app brings the convenience of iDisk to your iPhone and iPod touch.
You can directly view files including iWork and Microsoft Office documents, PDFs, and QuickTime movies.
And if you want to share a file with someone else, just tap the share icon next to the file to email a download link that works great with both small and large files.
Via this Apple MobileMe announcement.