... What? The title was totally necessary. >_> A few days late on this, sorry y'all. Dunno how I missed it...
That aside, a Keldeo event is now active! You'll be able to get this special Keldeo from Gamestops 'round the USA from August 27th (the event started Monday) to October 6th, a day before the release of Black 2/White 2. The details are as follows.
Keldeo, Level 15
Hold Item: PP Max
Insultingly, this Keldeo doesn't have a single unique move. This one simply has the moveset it'd get for bein' level 15. However, this Keldeo does learn Secret Sword in both BW1 and BW2. It's recommended you don't teach it Secret Sword until you obtain BW2, however. If you're curious about the event itself 'n all the backstory of the Pokemon, one can obviously teach it Secret Sword in BW1 and simply not save afterwards. Remember to have Cobalion, Virizion, and Terrakion in your party (in BW1) in order to activate said event. ... I'm still a tad disappointed Resolution Form doesn't change it's stats or give it special moves...
For everyone in Europe, the event will be active from September 1st to October 11th. Gamestop, as well as GAME, should have an identical Keldeo available.