I'm with the jailbreak crowd.
You are very lucky in the sense that the current jailbreak is a userland jailbreak.
All you have to do is go to a website and click a button. No software, no DFU mode or anything. You can have your home button disabled in < 5 minutes.
These kinds of jailbreaks don't come often so take advantage!
It is by far the most elegant solution. Even if you restore the iPad and set as new, people will be able to end the application and it's going to be a pain to frequently start it up again.
Yeah, I actually already did the Jailbreak to test it out. Very easy and quite nice.
What? I am most certainly not trying to "show off." The iPad is a wonderful photo viewer and allows people to interact more with photos instead of just watching.Stop looking to show off.