While politics junkies wait for polls to close in places like Ohio and Texas, IT pros can spend time thinking about serious issues -- like critical differences in open source Ajax toolkits, critical flaws in Windows Vista, and the critical question of which lightweight laptop really has the smallest footprint. InfoWorld writers are all over the critical questions this week, so let the counting begin... A deep lo While politics junkies wait for polls to close in places like Ohio and Texas, IT pros can spend time thinking about serious issues — like critical differences in open source Ajax toolkits, critical flaws in Windows Vista, and the critical question of which lightweight laptop really has the smallest footprint. InfoWorld writers are all over the critical questions this week, so let the counting begin…A deep look at Ajax toolkits: Ajax was supposed to smooth over the differences between browsers, but what do you need to know to choose an Ajax toolkit? There are hundreds of options out there, and Peter Wayner looks at eight open source Ajax toolkits to help you figure out which is the best for you. Peter takes a close look, and if you’re in the market for a new development tool you’ll want to pay special attention to the screencast tours of all the candidates.Vista knowledge: That Vista and its attending flotilla of drivers didn’t really play well together is well known. The question for many users has been whether Microsoft knew about the situation before they released the latest operating system, or were caught by surprise when millions of users started to have problems. According to the latest article by Randall Kennedy, Microsoft knew, and pushed forward with the release. The problem now isn’t so much what to do with Vista (with SP1, things are starting to settle down), but how much the lingering memory of Vista will effect adoption of Server 2008. What are your plans? Light green computers: Apple’s MacBook Air and Lenovo’s ThinkPad X300 are the standard-bearers in the race for small, light, high-powered computers. The footprint each occupies on the desk is well-defined, but how about the environmental footprint each leaves? Is there a clear winner in the Green Computing Sweepstakes? InfoWorld’s Ted Samson evaluates the two lightweight laptops to see which is the most environmentally responsible. Along the way he finds things like Energy Star compliance and the amazing 85-pound battery charger. Which machine won? Go read Ted’s post, and find out. Technology Industry