it's a 128 meg chip.
It's not impressive because it all fits,
it's impressive because none of it needs to be installed.
So I can take my stick and put it in any java enabled windows machine and blam-o my ide is there and ready to go.
Firebird - no install
unlimited ftp applet based just needs a java enabled browser to run
jext - java based comes as an install but if you install it to the usb stick it will run from there on a system that has not had the program installed, i.e. no registry entries.
I just think it's cool that I can carry my ide around my neck.