OSOMac redesign

I am redesigning the web site completely, to put the accent on the applications rather than the blog (which will not be discontinued!). In the next few days the look of the site could change several times, including the name and position of the pages. I will try not to affect the connectivity in any way though: all links should continue to work, and the RSS feed should not be impacted either.

Please let me know if you find something broken.