None that I am aware of. The free .info promotions ended a long time ago now. The cheapest I know of is domainsite.com which has a $1.99 .info promo.
1and1.com have just started offering free .info domain names for a limited period. Terms & Conditions: "Offer not applicable to internal or external domain transfers. Domain must be registered through the checkout process; free .info offer does not apply to domains registered through the control panel. Limit 5 domains per customer, household, mailing address or e-mail address. Offer applies to one year’s registration of ordered .info domains. After one year, customer will be billed at standard 1&1 domain rate. Note to Affiliates: free .info domain names may not be eligible for commission."