I've had to put out a 0.74 version to update a minor glitch in the 0.73 release that prevents the Bluetooth server from being started.
The only thing modified in this update is the APK's manifest file. Unfortunately there's a very annoying bug in the Android tools for Eclipse where certain changes will result in it inappropriately changing the names of services provided by an application. As such the Bluetooth server wouldn't start at all in 0.73.
Sorry for the trouble everyone, nothing more annoying than devs that throw multiple releases up in a day.