I tested Warelex Screen Capture on my nokia e65 for about 2 days now and i have to say that the performance was not good,mostly because of the slow frame rate,it took a long time to display the images on the screen  in low quality setting and a longer time in high quality,and in some apps it does not appear at all. so to end of this was a good ideas but it needs some more work.(FAIL!)

Warelex Screen Capture homepage

Found the link via Nokia Daily News and All About Symbian.com