someone from this site sent them an email and the responce he got from them was there are currently no plans to manufacture a case for the droid but that can change at anytime depending on the popularity of the device.
so from that and seeing how this device is selling i would imagine that it would be smart on their part to bring one out. I used to work in marketing and if they dont even have a design or anything done it will take a good 6 months to get a product out to the customer.
That was just a boilerplate response by some employee to the inquiry.
6 months ... No way, and I will prove it ... read below:
The G1, the first Android OS phone, was released on Oct 22, 2008. I bought mine within days. I recall that there was discussion of the Seidio case fairly soon thereafter on an Android forum I frequent. So I went back just now and did a search, and sure enough, I found a reference and a link to the Seidio case for the G1 on this particular forum as early as 12-20-2008, less than 2 months after the G1 was released! See here, post #10 in this thread:
Seeking Rubber/Plastic Back Case - Android Community Forums
Now we know from this that at minimum, Seidio had cases on the market (and therefore holsters too, since they sell them as combos as well) as early as under 2 months after the G1's release, and probably earlier than that, possibly weeks earlier. The G1 sold fairly briskly when released, but in nothing like the numbers that the droid is selling in.
So from this research of mine, it is reasonable to expect to see Seidio cases and holsters for the droid on the market in considerably less than 2 months time from Nov 6, probably in just weeks from now. I'm sure Seidio has a droid and is already hard at work on it.