Beginning now, Hilton is running a double point or double miles promotion through May 31. It does require the HHonors member to pre-register using the below link:
In addition, starting Q2 of 2015, all Hilton HHonors Diamond members will receive complimentary premium wi-fi access at all hotels. Complimentary standard wi-fi will continue to be a benefit for HHonors Gold members and, beginning in August, such will be extended to HHonors Blue and Silver members. Registering for this offer is not required – the traveler will automatically receive such based on their Hilton status.