Don't know specifically about coronado springs, but all the dvc resorts have it. We stayed at YC in 2008 and CBeach in 2009 it was about 10 a day. It's not wifi though.
You may want to check the resorts board for more info.
$9.95 per 24-hour period (at least the last few times I've been to the World).
P.S. That's for high speed, not wireless. I seem to remember being on my laptop on our patio at SoG, and I think you can get it in the BC lobby, though.
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