Here's the scoop.
The first app (i've not tried the second) is quite good. Although the start menu is set up like the 'Show Desktop' icon. It does, however, cause graphical clitches on the extended desktop when using media players (any) but it could just be my GFX.
First impressions: I'm impressed, they need to just create 1 for Vista/Seven as even the website makes me think it's designed for XP.
Additional: Running an app from the 2nd screen opens up in the 1st