It still seems much more stable than Vista (and it is a release candidate version!). I have successfully tested some other programs:

• CorelDraw14
• Google Chrome
• RapidSVN
• Eclipse
• Jude UML
• Paint.Net
• Skype

Unfortunately Sony Wireless Manager stopped working, to be precise, the problem is that it does not recognize the modem. I still have the problem with Winamp and my touchpad, but I am happy despite of that.