RS-232 + 4 i/O + ethernet + internal Flash [SOLVED]

akuthor:
A message from device has 95 bits aprox. and I need to save 30MB or a little more.

Can you say me if this kit is a better option compared to UNO R3?.

http://dx.com/p/open103z-package-a-stm32-microcontroller-development-board-kit-blue-149377?item=573

Cheers,
Akuthor

If you want to look at a non arduiono a r pi is probably a decent fit, linux is a lot easier to get used to than a random arm stack.