[DOS via Linux on the DS?]

[sssseven1]

http://users.netwit.net.au/~pursang/dosbox.html

Are apps like this bootable on DSLinux?
I'm not familiar with it at all; I'm still waiting to buy my flash cart.

I'd love to play some ADOM on my DS.
Keyboard support on the PSP is attrocious.

[DanTheManMS]

No, DSLinux can't run many user applications, and it has very little RAM to use for running those it can run. If there's an old DOS-era game you want to play, you can try SCUMMVM DS, though it may not work. Otherwise DOS games/apps won't run on the DS at all.