I bought & installed this app and tested it on EDGE and it worked so I was happy. Some time later using the app it crashed. Now it will not work on EDGE and I've tried in several places with good signals. I've uninstalled and reinstalled it. Wi-Fi works good.

I've posted my issue with Nullriver and haven't gotten any response. Anybody have any suggestions? Thanks.

Did you try a hard reboot? Fixes such app issues sometimes.....

Yep, done everything I can think of. Deleted it from phone and itunes, re-downloaded it from App Store. Still doesn't work on EDGE.

I am using T Mobile with T Zones. Could that be the problem?

I have found that jailbreaking with Pwnage (I didnt need to unlock as I use O2 payandgo) has messed with my edge and gps, edge stopped working in youtube for me and there was nothing i could do
After a restore to normal firmware it works fine.

I have an OTB 1.1.2 --> 1.1.4 (ZiPhone) -->2.0 (5A347) Pwn (Jailbreak & Unlock), using Vodaphone carrier in Australia.
After running the Pwn, everything works well, EXCEPT that Edge no longer works anytime. I've searched for Edge Settings, but cannot find any settings anywhere. The Edge rectangle still shows in the 'Title Bar' (but now with the circle inside).
Does anyone have any clue how to get Edge working again?

it works for me