I made the transition and enjoy both using and hacking my 7" Galaxy Tab. There is life on this other planet; what's more, if you come to the Android shores with your Maemo spirit, you won't be able to refrain from turning your device in a real linux & gnu tablet; and this is a good thing

May I help you with my troves?

You can have terminal, bash, ssh, vi (not nano) quite easily [Better Terminal Emulator, lite or pro]; complete kbd for your developing needs [Hacker's Keyboard]; graphical text editor [I like Jota Text Editor].
Setting up a chroot for Debian is a breeze, and using a VNC client on localhost isn't too much penalyzing provided you don't do video or gaming with it; concerning the VNC client, try both Android VNC and Pocket Cloud, which is very strong for its particular multifunction mouse pointer.

You'll find many other interesting tools in the list under my sig; I got them after having browsed almost a year of past news from xda-devs, so I should have got a good deal of useful things.

Can't help you with aircrack, because I'm not in pentesting; conky, I can live without it, provided I can get every bit of info I need from my terminal.

So... welcome and happy hacking! If you use Google Plus, connect me and browse for the other Maemians who also like Android, like Danrmos, Capt'n'corrupt, and several others: we can have a lot of fun even while the [Nokia] boat is unfortunately sinking...