
The new beta of Internet Explorer 8 for Windows features a new feature called “InPrivate Browsing”. As Microsoft explain,
Now you can shop for that special gift with confidence knowing your family won’t accidentally find out.
Windows Internet Explorer 8: Home page
The new beta version of OmniPlan imports Microsoft Project 2007 files:
The Omni Group - OmniPlan - Beta
A very useful article from Google’s Miško Hevery about the problems with the Singleton design pattern. Essentially, Singleton’s rely on a global instance variable which could point to any number of other variables, thus creating a global state. This causes problems when you want to test your code.
Less than useful release notes for the new iPhone OS upgrade:

“Bug fixes” really doesn’t tell me a lot; a link to a page explaining what these fixes are would have been useful.