iOS wifi scan, signal strength

Question

As far as I know it\'s not possible to scan for hotspots in range and read their bssid and signal strengths. This was possible on iOS 4 by using private APIs and not longer

Answer 1

As far as i know this can still be done (using private APIs, of course) by MobileApple80211 framework.

Stumbler code is a good source of information on how to use this framework.

For iOS 5 you'll need a jailbroken iPhone. Guvener Gokce has a very educational blog post on this: iPhone Wireless Scanner iOS5

Answer 2

Just to update the answer: The MobileApple80211 framework has been replaced by MobileWifi.framework. You will need a jailbroken device (supposedly it can't be done using just private API's, hence on a development/enterprise non-jailbroken device).