And so the plot thickens. Remember that snotty remark from Yahoo claiming its email system worked fine on other platforms so it must be Windows Phone 7 that's to blame for the lost data issue?
Well, the Microsoft camp has lined up a nice backhand and smacked the ball straight back into Yahoo's court by claiming that in fact this isn't true at all and similar anomalies can be seen by testing the process on the iPhone too.
In case you missed it, the issue first cropped up a couple of months ago when Windows Phone 7 handsets were found to be firing off chunks of data seemingly at random, without their owners' consent. Around Christmas several forums saw reports of users being told their monthly data quotas had been used up, even though they had barely touched the internet on their phones.
Microsoft promised to investigate, and the rest of us got on with our lives. Or at least we did until Microsoft blogger Rafael Rivera brought Yahoo into it by spotting what Microsoft termed an “inefficiency” in the synchronisation of email between the Windows Phone mail client and Yahoo Mail.
“This inefficiency can result in larger than expected data usage for a very small percentage of users,” Microsoft's statement went on to say. To which Yahoo replied that “Yahoo Mail is widely available on tens of millions of mobile phones, including those running on Apple iOS, Android, Nokia Symbian, and RIM. The issue... does not impact Yahoo Mail on these other mobile devices.”
With the gauntlet firmly thrown down, the same Rivera then did the obvious thing and decided to test whether that was indeed true.
His approach, to ask an iPhone-owning mate to replicate the test that revealed the inconsistency in WinPho 7, may not have been the most scientific, but it did seem to reveal fairly conclusive results. You can read his findings in full on the Within Windows blog, if you've got a mind for technical details.
For the rest of us, maybe a return to pen and paper might be the safest course of action to avoid the dreaded data loss gremlin.