Here's a tip for those having "culture shock" with Android, and missing their N900's xterm and other goodies...

Look up "Spartacus terminal IDE" on the Market and install it ASAP!

It's free, even open-source, and works with non-rooted devices.

The documentation effort that comes with it is really, really seldom
seen in this category and makes it quite user-friendly. A refreshing
change from the usual "if you want bash you must know what you're
doing, right ?" mentality...

It also provides a custom keyboard that changes everything, a real beauty,
especially as it's also available in other editors, and apps like
SL4A... Now I miss the N900's hardware keyboard a bit less :-)

A must-have for ex-maemo users for sure...