Please consider changing the name - it's already in common use for Windows Apache, MySql and PHP (similar to LAMP).
"WAMP and the WAMP logo are trademarks of Tavendo GmbH."
Possibly the registration is either pending or registered in a non-US country as the only live WAMP trademark registration I could find was a pasta sauce: http://tess2.uspto.gov/bin/showfield?f=doc&state=4004:dv...
Regarding the name itself: WAMP is the same as the massively popular Windows LAMP stack. Unnecessary conflict.
But maybe WSAMP could be a nice alternative. AMP postfix hinting "amplifier". The risk of using WS prefix is the relevance to WebService.
I'm also a bit surprised that they didn't first type "wamp" into Google and see what came up. Given the number 1 result for me is wampserver.com, it seems a particularly unwise decision.