Alamode has pocket Apex, but I just did not have enough room on screen to draw a simple 2,000 SF house. If you were measuring rectangular homes with no turns, then it would be fine, but I am just not that lucky.
EX. I was drawing on my PDA with pocket apex. I had a covered porch with a fireplace extension. 6.8 R, 2.4 up, 5.3 right, 2.4 down, 6.3 right, 12.2 up. When I was finished I was suspicious that I may have entered one of the dimensions wrong. I could not tell by looking at the screen because the diminsions were all superimposed all over each other. This was 3/4 of the way around home. I jettisoned the PDA and got my clipboard, because I spent more time trying to figure out the mess on the screen than it takes to sketch on my clipboard.
Now, If CompUSA will ever get re-stocked on the Tablet PC, I will be using it with full screen Apex.