As of September 2, Panel Picker voting is closed. You can, however, still leave comments on the proposals you find interesting. We will announce the first set of accepted panels on Thursday, October 2. Stay tuned to the SXSW Interactive Festival website for these announcements, or e-mail us if you have questions.
Web platforms are now widely available - AppEngine, EC2/S3, Force.com are just a few - which can provide a base for everything from simple Web app dev to highly scalable consumer sites and enterprise apps. With this explosion of platforms how should developers think about using them? How should you evaluate these platforms?