Android app discovery engine AppBrain has launched a new version of its AppBrain App market software for Android. AppBrain 5.0 for Android still lets you search for apps and install them from your device, as well as synchronizing with your account online so that you can see a list of installed apps using a desktop web browser, or select apps to install. But now the AppBrain Fast Web Installer has been integrated into the main app so that you don’t need two separate apps — sort of.

Fast Web Installer lets you click a button on the Appbrain web site and automatically download and install the app on your phone.
That’s the good news. The bad news is that Google’s latest update to the Android Market killed the Fast Web installer functionality. It might come back soon, but AppBrain suggests it might not matter anyway soon, since Google plans to build a similar feature into the Android Market.
AppBrain 5.0 does comes with a new “Fast Sync Widget” for your home screen, which you can tap to quickly sync the apps on your phone with the AppBrain web site. It’s not quite a 1-click solution, but it is a 2-click solution (plus a few extra clicks). Hit install on your desktop web browser, and then click the Sync widget on your phone to open the app management section and install single apps or batch install apps.
Aside from the synchronization changes, ApBrain 5.0 provides a details page for every app as well as reviews, and a new tab to view related apps. AppBrain 5.0 also supports Facebook single sign on.
AppBrain 5.0 is available as a free download from the Android Market.