Interesting idea. I'm running it on my desktop at 1600*1200 and it's a bit too small to use.
One technical note. If I right click within the boundry area of the numeric display, I get an error message that won't leave the screen untill I kill calculator with task manager... "Out of system resources." It's repeatable on my system, any one else give it a try?
Plaz
edit: clear error definition