[timo614]

This is only partly related but just a heads up some courts have found TOS agreements illusionary in the past for including clauses that mention they can be altered at any time without the user's consent. Some courts may throw out the clause, a section of the TOS, or even the entire TOS as a result.

Just an example of precedence (you'll need to copy and paste HN drops the trailing period on the URL): http://en.wikipedia.org/wiki/Harris_v._Blockbuster_Inc.

I'm not a lawyer just good to keep in mind that the validity of such clauses is in question in courtrooms in the country.