has anyone succeeded in passing multiple params to the gmail contacts api?

Question

The api (http://code.google.com/apis/gdata/docs/2.0/reference.html#Queries) states that I can pass multiple params to retrieve my contacts, a la... http://www.google.com/m8/feeds/contacts/foo%40gmail.com/full?max-results=500&alt=json

However, it appears to only pay attention to the first param and ignore any subsequent. I'm using CURL... maybe the problem is in the CURL and not in the gmail api, but I can't get it to recognize any params other than first one.

Here's my curl call... curl -v -X GET -H \"Authorization: GoogleLogin auth=$authToken\" http://www.google.com/m8/feeds/contacts/$username%40gmail.com/full?max-results=1000000&alt=json

Any takers?