Since I finally managed to open these, I thought I'd write a quick review.
Acquired: at a Los Angeles TRU on La Cienega
Price: $19.99 USD each - TRU Exclusive
Boxes: Co-sells are Primal Prime and Soundblaster. Copyright dates are 2007, which makes me think these have been done a while. Interior art on Grimlock's is fantastic, with his chest colors and a huge Autobot symbol. Prowl's is a little dark. Bios are really detailed, and match the comic AFAIK.
WW Grimlock: Great robot mode. Nothing too loose on him which is good for Titaniums.
Comes with gun + sword. Colors are great. Transformation is rather lame... close his back 'wings' to become the top of the vehicle, flip him over and close his legs. Overall, I'd say he's a solid 7.5/10.
WW Prowl: Nice robot mode. Different look for Prowl. Vehicle mode is something completely different and very cool. Tinted blue plastic looks really good. Overall, I'd say he's a solid 9.5/10.