> Can I SSH into the phone, run aptitude, and install whatever package I want? Yes, but you have to switch away from read-only mode, and then image based updat

> Can I SSH into the phone, run aptitude, and install whatever package I want? Yes, but you have to switch away from read-only mode, and then image based updates won't work. So it isn't really recommended. On the other hand if you just want the hardware to hack on and customize, then sure, you can do that.