Leaking water pump at 30K service?

I just took my '07 Tahoe in for its 30k-mile service.  Service guy calls me during the day and tells me that the water pump is leaking.  Luckily, it's covered under warranty and I also have a free rental (under the new GM 5 yr/100k warranty).  I'm surprised that the water pump is already leaking at 30k miles.  Granted, this is my first Chevy, but I've never owned a car, domestic or import, that got a leaking water pump at this number of miles.  30K is relatively low miles to me.  Anyone else had this problem with your Tahoe at 30k?

You're the first one I've heard of. 

I just had to take my 2007 tahoe in for another reason - the car wouldn't excellerate over 10mph - apparentaly it was stuck in 4wd low.  Wierd thing is I read this post yesterday after the tow truck came to try to find out if what was happening was a fluke or a common bad problem.  Then my husband talked to the dealership today (we have 32,000 miles) and they told us we have a leaking water pump as well!!!  Chevy should know about this problem - I don't think it should be happening this soon either!
 
Thank god for warranties =)!!!!

Welcome to the Tahoe forum.  Fully agree re: warranties.
 
Let's us know what the resolution of the lo-speed problem is.