Looks promising but it would be really great if someone could figure out how faroujda's DCDI method works to create an avisynth plugin. I personally own 3 devices with the DCDI chip for deinterlacing and it is pretty amazing when it comes to deinterlacing, it really eliminates jaggies good and keeps alot of resolution, here is an example:
It's not that great of a sample but if you've seen DCDI in action you will see that there is nothing that can beat it right now (I think so anyway). More detailed explination here:
http://www.av-outlet.com/en-us/dept_335.html