Ad-funded mobile games firm Greystripe has more than 70 partners to whom it supplies its 800-strong catalogue, but none of them are operators. Well, none of them until now.

Greystripe has just announced a deal with German MVNO Simyo, which will be offering the ad-funded games to its subscribers via its website and mobile portal.

What's more, Greystripe has developed a Simyo-branded page that appears before users play a game, sending them to the operator's WAP site to get more titles.

Greystripe says the deal shows that "not all carriers are attached to the for-pay model of mobile content". It might be more accurate to say the deal shows there's an opportunity for Greystripe to sign deals with new MVNOs, however.

Will a large established operator follow suit though, offering ad-funded mobile games alongside its for-pay offering? That's presumably Greystripe's hope.