The QA team has started a page for getting up the minute automated results from smoke testing of daily images. Check it out! They still have more smoke tests to set up, but everything is running automatically from daily builds. You can check to see if the latest build installs and if basic tests run. If they do, it's probably worth testing with that build. If it's not, then the team should be busy at work at making it work testing!
Also, this page is just on small step in the blueprint for smoke tests results page.