It is not completely known why, but some pictures do get lost in the transmission, as "vanished into the thin air" kind of lost. We can't blame the wireless communication anymore as we used to, since we are talking about 3G now, and TCP protocol is supposed to guarantee the delivery.
We used the NSURLConnection initWithRequest method, and supposedly it is calling the "CFNetwork/342.1 Darwin/9.4.1" to send the photos. CFNetwork is the most reliable way to send large amount of data with iPhone, or is it?
Maybe we can look at other ways to send data with CFNetwork in iPhone SDK, but for now, try sending photos when you have strong signals with either 3G or Wi-Fi.
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