WAX 2.3 for Windows is the first product in the world to offer asynchronous JavaScript loading. They are working hard to put the same capabilities in into their Linux product coming soon.

Google's Steve Souders on solutions for loading JavaScript faster (including Aptimize) - read his blog post here.

Derek and Ed from Aptimize recently had lunch with Steve at Google, and here is an interview with Steve about innovations in loading and executing JavaScript.