London theatre iphone/ipod/ipad app

[CONAries]

Hello All,
Aswell as being a theatre student, one of my big hobbies is as an app developer for Apple products. This basically means I create applications that can be downloaded on an iphone, ipod touch or ipad. I am currently developing a theatre app that lists London theatres, directs to them, carries seating plans, show schedules, basic theatre information and links to their ticket agencies. Obviously there are websites around that offer this, but there is only currently one (and a rather poor one) app that offers a similar service to this and it isnt very user friendly, as well as only focusing on the big west end houses (it's main issue is, it is run buy a ticket agency, so it's main purpose is to sell tickets, not inform) The main advantage about using an app is once downloaded (for free) it can be used whether you have an active internet connection or not.
so, my question to you, the theatre community, is are there any features you would find useful in an app such as this that I should consider including?
Thank You!

[philitalia]

I think it's a great idea.

Hope you'll develop an android version

Your list seems pretty complete.

[CONAries]

I actually have a friend who develops Android apps, so as soon as I finish this one for iphone etc we will be copying it over and developing it for Android use, though it takes a little while!