I was a little annoyed with the lack of good digital rains out there so I decided to make my own. Only issue I have right now is getting it to be full screen, it leaves about 60 pixels as whatever back ground you have selected already.
I used this as well as NMatrix summerboard theme and have a pretty nice little skin going.
http://www.sendspace.com/file/h1p3a4
I know the resolution is a bit odd, but it works so I'm not complaining.
To install ssh into your iTouch/iPhone
then navigate to "root/library/skrew/videos" (Without quotes of course)
Copy and paste the video file into the folder!!!
I'll keep trying to figure out why I'm too stupid to have it running full screen and will post back here when it is all finished.