I've just finished creating an iPhone app for Thomas Tallis School using the amazingly easy iSites.
The app, which you will soon hopefully be able to download from the App Store via iTunes, is a collection of all the blog feeds that are related to the school. At the moment, these are almost exclusively arts or creative learning based but, eventually, if blogging takes off, students and staff will be able to access the latest information about the school and the curriculum using this app. There is an Android version of the app on the way for anyone without an iPhone. Even now there are an amazing 25 different feeds from a combination of Blogger, Tumblr, Twitter and Flickr sites.
I'll let you know when it becomes available on the App Store. Exciting times!