Okay, just ran the script on my N900 to install the patch:

I can now play 720p H264 base profile video without any issues after a fresh reboot and running at default clock for CPU and DSP. (using KP49) I didn't need to overclock the DSP at all. Hmm. Maybe my video isn't demanding enough to need it? Anyways, very happy that it's working. But yeah, it's not the most useful capability when I still need to re-encode to such encoding settings. But still feels good that the N900 can now play videos nearly as good as my N9. (which is sad in a way as I wish N9 was much better)

Gonna try a 720p xvid + AC3 AVI video later on. Hope it works.
(Just tried it and it works perfect. So this is a huge improvement!)

Anyways, awesome work freemangordon!

p.s. btw, there are times when it always says Media format not supported no matter what I do. Once I reboot, it works fine. Then, later, it happens again and I have to reboot. Any idea why this might happen?