<A target="_blank" href="http://www.winsupersite.com/article/mailbag/Mailbag-January-2-2011.aspx">The last entry in this "mailbag" of questions to Paul Thurrot</A>t indicates there may be a problem with Windows Phone 7. It seems the phones utilize a 3G data connection even when Wi-Fi is available. This has meant large data bills for users.