although Tubes are a natural progression of the MGP...
 

...the key difference is that a tube script comes with a layer of protection for pirates - the user upload function.

now onto the next natural progression...

"the user upload function" = bunch of people in the back room uploading vids under diff usernames :-()

another big difference is that MGPs give users the ability to easily collect the clips

I prefer gallery posts and .wmv / .mpg over low-quality embedded flash anyday...

I think the best ones are wmv and flv