...that are amazingly satisfying to interact with  #edtech #edchat. When I say pointless I more mean that there are no objectives, no scaffolds, no instructions, and no social interactions.  I just have found that the design of these apps is so elegant and interesting and they both make good use of the iPad interface and screen size. Both apps are free and also have iPhone and iPod touch versions.

Epic Citadel. You are dropped off in some medieval looking area and you can walk and look around the castle and surrounding grounds.  There is nothing to do but explore, but it's incredibly engaging.  The makes of this app desgiend it as a demonstration of a new graphics engine (Unreal) so I imagine that they will be producing some more interactive applications using a similar graphics platform.

Line Art. I don't even know how to describe it.  There are a bunch of colorful little sprites on the screen.  When you press somewhere (or press and drag), awesome things happen.  Press with two fingers?  Even more awesome. You can't save drawings, or at least I haven't figured out how to since there's no menu.  The colors of the sprites change over time as do the way they react to your touch.

Best to avoid the Twitter.com website until they resolve this issue.  I'm updating my status through this site's auto-feed.

http://bit.ly/cvEElc

Third party-sites that use Twitter's API are not affected. 

This is a great geometric and spatial reasoning $0.99 app for both iPad and iPhone.  In Slice It!, you are given a figure and a certain amount of cuts to make equivalent fractions.  There is room for error, and at the end of each level you are told how close you were to perfection with the actual percentage of your cut-up shapes shown.

Of the many apps I have explored this summer, this game appears to be the most ready to be introduced into a middle school math class. The feedback is immediate, the muic is fun, and the interface (simulated graph paper and pencil) is extremely accessible.