It must be a relief to many people who upload videos to YouTube that you can now use a program to upload your files all at once AND your files can be 10 times as large, at 1 GB instead of 100 MB.  According to Read/WriteWeb YouTube Releases Multi-file Uploader, Raises File Limits to 1 GB :

"…YouTube just announced the availability for Windows users of a desktop uploader (install page here). Users will now be able to do bulk file uploads. The company also raised its file size limit from 100 MB to 1 GB. Length will remain at 10 minutes though, so that just means more high quality video will be available on the site.

Google Video remains the option of choice for long form video uploaders but some YouTube users have long complained about the small file size requirements and resulting low quality. Vimeo, a tiny boutique competitor owned by IAC, opened to HD uploads at the end of last month. "

I guess, bigger files means richer content.