looking for better wifi connection

[Swavek]

I have an Acer Iconia A500, but my question isn't specific to my tablet. I use my tablet at work and I'm often walking around. My problem is that it doesn't reconnect to new access points fast enough (i have the wifi sleep policy set to never sleep). Is there an app that could improve this? Perhaps something that would scan for access points on the same wireless network and connect to APs that have a stronger signal? I use our corporate wireless network that uses PEAP.