Boot multiple OS

props
Hi everyone.

I´m currently using Qtopia on my FriendlyARM mini2440 and I´d like to
install Android to make some tests. I recently bought a 4GB flash card and
I´d like to know if it´s possible to install Android on this card and
configure a kind of a menu on system boot to choose which operation system
to boot. If I choose Android the system would boot the Android image saved
on the flash card.
I´d like to keep Qtopia on my NAND flash because I have an app running.

Thanks.