Kaltura's All in One Video is Great. I use it with my video blog using WordPress-3.1 and it works well even on certain free web hosting provider.
For those whose video blogs, I suggest you to apply this great plugin with your blog. I guarantee it'll work well for you, too.
I will apply this Kaltura's plugin for my other WordPress Blogs, soon.
Thank you very, very, very much Kaltura's webmaster and, of course, WordPress team.