Marcelo Souza has released a scientific calculator app that is just for v2.0 firmware PSP consoles only, heres what the coder says:
I made all the changes on the original code (It's a free code), and did the new skin, to be suited to the PSP screen resolution. I did not tested this calculator on any browsers of the versions older than PSP 2.0. I am sure it runs nice on the PSP 2.0 Browser.
Download via the comments:
