I've recently updated to a Slingbox 500 from a Pro-HD and I'm having issues with the Android App:
1. Streaming audio only on Pro-HD uses bandwidth of under 100kbps on 500 usually around 1Mbps
2. The 500 absolutely chews through the battery alarmingly but not with the Pro-HD
3. App crashes when disconnecting when streaming with 500 but not when streaming from Pro-HD.
I have both units connected and this behaviour is consistent when switching between the 2.