You have a minimal slackware installation (it's basically Stuart's miniroot with a couple of things added to it).
There are many ways you could go about taking a miniroot to a full system ... this is the one I use most of the time (but requires networking to be functiona):
install manually into the miniroot everything you need to get slackpkg working (wget and installpkg a few time to satisfy the dependencies),
configure slackpkg to use the right mirror for your system (edit /etc/slackpkg/mirrors and comment out ftp://ftp.halifax.rwth-aachen.de/sla...kwarearm-14.0/
... or something that looks like that),
run "slackpkg update" (this will update just the repo)
run "slackpkg install X n l xap" this will install the package series and get most of the stuff you need)
You will then need to edit inittab to change the default runlevel into runlevel 4 and possibly choose whatever version of xdm you wish to use.
If you can't get networking to work you might want to install via chroot from another pc that mounts the target SD.
Be warned that you may run into all sorts of problems with the touch screen.
Forgot to mention ... you will also need to do something about a virtual keybord unless you want to carry a physical one around with you (http://homepage3.nifty.com/tsato/xvkbd/#download
BTW: thre is a whole lot of other distro alternatives if you're looking just for something different to Android: http://linux-sunxi.org/Category:Linux_Distributions