iStack iPad currently isn't available on the appstore, it's in development as is getting towards the end of the first version. 

**I'm now *starting* to look for beta testers, you will need an iPad device, any iOS version will do, please post an answer to this question if you want to volunteer, I won't start testing immediately. And I'll be looking for general feedback/problems as well as bugs and crashes.**

Each column now has an edit button where the sites can be rearranged and moved from favourites to non favourites and this is persistent between app launches, moving a site in one column moves it in all of them. 

![alt text][1]

Printing Functionality all implemented and working, thanks to systempuntoout's [stackprinter.com][2] works with AirPrint, which means this app will be iOS 4.2 minimum.
![alt text][3]


Current features (well some are "features"):

 - 3 columns
 - Email link to question, open in safari and copy link actions
 - History for both questions and sites visited
 - In app notification (red bar at the top) when a new site makes it into beta.
 - StackPrinter in the app, without needing safari, and AirPrint functionality.
 - Facebook Intergration
 - Post owner pages, with associated accounts.
 - Shrink the bottom dock so there's just the text.
 - Add questions to local favourites.
 - Caches the last downloaded list of questions for each site, so you can look at questions while loading the latest, including after restarting the app.


  [1]: https://i.sstatic.net/tZLim.png
  [2]: http://www.stackprinter.com/
  [3]: https://i.sstatic.net/e3s4F.png