Welcome to the site, Charles.
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Originally Posted by Charles Louisson
EAS with the hw6915 (or any other GPRS/WLAN WM5 phone?) offers the potential for big savings versus BB as I am sure that a significant proportion of the traffic is delivered when users are in range of a WLAN.
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Not only that, it offers the ability to use EAS when you're in weak coverage. At one point, I was using my JasJar with a carrier using SMS push; even if the JasJar was in an area with a too-weak signal for GPRS, as long as the SMS came through the device could wake up and sync over WiFi. (This was before the MSFP was installed on the device, which changes the behavior of "as items arrive". And I
think that was what was happening, although I didn't test it extensively. I do know the SMS-based push algorithm entailed the device actually waiting before triggering the AS, by design.)
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Wouldn't it be much better if you could use GPRS for notification as items arrive and WLAN (if available) for the sync, with a short delay to allow any WLAN connection to come back up?
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Yes, it could be very convenient. I think this may become a reality when UMA starts becoming more prevalent, allowing seamless handoffs between WiFi and cellular data. On the other hand, as 3G, 3.5G and 4G hit the market and more unlimited plans come into effect, the benefit of WiFi diminishes immensely. My 700w is sufficiently fast over EVDO that dealing with the "hassle" of WiFi (association time, amongst other things) is just not worth it.
--janak