After an embarrassingly long time in development, version 2.0 of Pi Cubed is now on the App Store. The big new addition in this version is an iPad interface (free for paid users as part of a universal iPhone / iPad application), but this release also brings undo / redo throughout the application, a revamped user interface, and other tweaks.

A while ago, I wrote an article about the steps required to set up a web server that runs the Drupal content management system (like this site). Â Enough has changed in the interim that I figured I'd revisit this article with more up-to-date information. Â In particular, Amazon just introduced their micro instances, which offer you the ability to host a website for as little as $5 a month.

The videos of the Advanced iPhone Development class I taught this past semester at the Madison Area Technical College are now available for free on iTunes U. These videos amount to over 35 hours of HD content, covering more advanced iPhone development topics such as Core Animation, multithreading, Quartz 2-D drawing, and OpenGL ES. The course notes that accompany the class are available for download here in VoodooPad format, or for viewing here in HTML. Links to all sample applications used for the class are present in the notes.

A new version of Molecules is now available on the App Store, and the available source code has also been updated. Â The new version fixes a potential crash in iPhone OS 4.0 and adds a new means of directly installing molecular structures in the application.