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When I got my Touch yesterday morning, they didn't have any on the shelves, nor did they say when they would have them in. The entire staff were pretty dumbfounded with any questions/problems in relation to the Touch, most of them didn't even know that they were released yesterday.
 
The major case makers won't have them out for a while. Griffin is taking pre-orders though.

Your best bet is hitting eBay for the time being. The good news is you can score a lot of cases that ship from China for 99 cents with free shipping. I have a bunch of them I bought for my iPhone 4, and for the dollar, they are good, and will tide you over until "real" cases come out. Look for a seller named Ashopone. Here's a link...

http://cgi.ebay.com/Silicone-Case-C...195747?pt=PDA_Accessories&hash=item53e362e8e3
 
How long did it take case manufacturers like Incase take to bring out a case for the iPhone 4?
 
The major case makers won't have them out for a while. Griffin is taking pre-orders though.

Your best bet is hitting eBay for the time being. The good news is you can score a lot of cases that ship from China for 99 cents with free shipping. I have a bunch of them I bought for my iPhone 4, and for the dollar, they are good, and will tide you over until "real" cases come out. Look for a seller named Ashopone. Here's a link...

http://cgi.ebay.com/Silicone-Case-C...195747?pt=PDA_Accessories&hash=item53e362e8e3
I have had a cheap case cause cosmetic damage to my iPhone. Be warned...
 
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