TubiTunes isn't restricted to downloading videos from YouTube (including higher-quality MPEG-4 files if available). In fact, it works with most popular web video sites, such as CollegeHumor, DailyMotion, Google Video, Metacafe, and many more. It downloads MP3 files from MySpace, and so forth. We can't name them all, because we really don't know — TubiTunes has a generic web media detection mechanism that will work with all kinds of sites it hasn't even met during beta testing.
Likewise, TubiTunes isn't restricted to dealing with one video at a time. Just keep clicking that bookmarklet and dragging URLs to the TubiTunes window or Dock symbol. TubiTunes will add all those movies to its queue, process them sequentially, and let you know what it's up to through its Dock symbol.
left: Processing two movies, one pending
middle: Almost there
More Than the Web
If you're looking for a way to convert your existing movies to something iTunes and your iPod can understand — you've just read how that works. Because in addition to dragging web video URLs to TubiTunes, you can do the very same thing with local movie files. Just make sure you have the Perian and Flip4Mac codecs installed, so TubiTunes can deal with all those FLV (flash), AVI and WMV movies.