Difference Between Android 3.1 and 3.2 (Honeycomb) -

4. Customizable Home screen

– Re-sizable home screen widgets. widgets can be expanded in both vertically and horizontally.

– Updated home screen widget for Email app gives quick access to emails

5. New high performance Wi-Fi lock added for uninterrupted connectivity even when the device screen is off. This will be useful for streaming long duration music, video and voice services.

– HTTP proxy for each individual Wi-Fi access point can be configured. This will be used by the browser when communicating with the networks. Other Apps also may use this.

– Configuration is made easy by touch-hold of the access point in the setting

– Back up and restore the user defined IP and proxy setting

– Support for Preferred Network Offload (PNO), which works in the background and conserves battery power in case where Wi-Fi connectivity needed  for longer time.

Improvements to Standard Applications

6. Improved Browser app – new features added and UI improved