WiFi dropping on "inactivity" (?) ...

Hello:

This issue has persisted on my 3G S as well as 3G and over OS 2.x to 3.0.1: Have you noticed that your WiFi connection will drop after you have loaded an app/content, and used the app for a while (say 30 mins or so)? On closing the app, the WiFi connection will immediately re-connect. My experience is with the NewYorkTimes app over a year now, but it has also been reported with Facebook, and others... Haven't noticed it on any other app. (This is not a wirelss router problem, have tested this close to the router and my other home computers don't drop the connection when side-by-side with the phone, etc.) I have queried Apple support and the NYTs to see if this is a "feature." No reply. This inactivity drop impacts my ability to get new content, since I may have fallen-back to a G or even an Edge connection... I want to re-contact Apple to see if I can get an answer and remedy; your replies would help.

Thanks in advance.

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