Flipboard has at last opened up its gates to the official app for Android, but in BETA form for now. You may remember a post on where you could sign up for the BETA, if you haven't, head over to the Flipboard site here and sign up if you're interested.
Once you've signed up you should be emailed with a download link for the app. They have said it'll take up to 24 hours but some are saying they're getting their download links nearly straight away.
Flipboard is easily one of the best news/rss readers for iOS and now with it coming over to Android it seems to be making a really good impression.
If you want the APK right now, you can head over to a post I did a while back and download it from there - Flipboard APK