Ah, the joys of development. In our first public preview, we've had a couple of common issues reported that we are happy to report are fairly minor, that can be addressed with either patience, or a little bit of effort. So! Here's what to do: If you are getting a "Roamz is currently invite-only" dialogue when you fire up the app... It seems we got a little overzealous excited about this release and sent out our emails a *little* bit early. As a result, the latest version of the app servers might not have propagated yet. This should resolve itself in the next 12-24 hours - the latest version of the app is 1.0.8. If you are having problems connecting Foursquare after you've connected Twitter (or vice-versa)... The issue occurs when you try to link both Foursquare and Twitter to your Roamz account, one after the other. The first will succeed, but the next will fail. If you're having trouble linking either Foursquare or Twitter to your Roamz account, you need to kill Roamz and restart it to link the remaining account. If you're not sure how to do this, follow these steps: 1) Close Roamz and return to the Home screen by clicking the iPhone Home button. 2) Kill the Roamz app. To do this, double-click the Home button to reveal recently used apps. Tap-and-hold the Roamz icon until the red minus appears, then tap the red minus. 3) Click the Home button, then click it again to return