Is there an equivalent app to WiFi Analyzer for the iPhone

Ouch!  That's expensive :(

i agree --- for a user only doing site survey in a couple of locations ... .
But since I dropped my thinkpad to the floor for the n'th time; I'd consider this !

I'd invest in some seriously sticky gloves instead if I were you :)

:)
considering moving from Wireless to Lync implementations ....

With all due respect to the programmers, I have done too many hacks like Jailbreak in my time. I don't want to get involved with the extra maintenance work of jail breaking, even if it adds features.

Oscium looks great, and I will examine the features.  

If I could get an Android device very cheaply, would WifiAnalyzer work without a cell phone connection?

The analyzer should be using Wi-Fi, so no need for a cell phone connection.