Another reason to bypass 3G is that the app is then identical on iPhone and iPod Touch. Considering that there are 37 million iPhone/Touch units sold, this is a big market for Sling.
I haven't looked at the iPhone SDK, but my assumption is that the network APIs don't differentiate between 3G and WiFi for that very reason. It doesn't take extra work to make the app portable; it takes extra work to disable 3G.
“An engineer explained to us that hundreds of ear impressions were gathered in the name of research, and while each one obviously boasted its own unique shape and size, one single characteristic remained uniform across the board: the entrance into the ear canal is not a perfect circle, it's an oval.”
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Another reason to bypass 3G is that the app is then identical on iPhone and iPod Touch. Considering that there are 37 million iPhone/Touch units sold, this is a big market for Sling.
I haven't looked at the iPhone SDK, but my assumption is that the network APIs don't differentiate between 3G and WiFi for that very reason. It doesn't take extra work to make the app portable; it takes extra work to disable 3G.