I‘ve not actually used an alternative launcher myself, so can’t comment from personal experience, but I came across this video on YouTube thanks to a Nexus 7 owning Twitter user.
If you aren’t familiar with the concept, a launcher is essentially a customised user interface, or desktop, for Android. It will give your tablet a whole new look and feel whilst the underlying O/S remains unchanged.
The video is a comprehensive guide to setting up the TSF Shell launcher on a Nexus 7. The launcher isn’t free, and costs more than the average app, but it can do some crazy stuff.
See for yourself:
If you want to champion a launcher, I’d love to hear from you!