There has been a lot of talk about Forgeworld models, Lords of War, the direction Warhammer 40k is going this year. We have had rumors before that Games Workshop will have a new site launch early this year, and this rumor goes into that some, stating that an announcement will come sometime around March.
Please remember that these are rumors. We have had here on this site, different sources of information talk about
via an anonymous source on Faeit 212
GW will announce the new Page in March, together with the sale of forgeworld models
This last bit was part of the conversations that were going on behind the scenes. Please consider these as rumors, and not as fact, but it gives some ideas to how Forgeworld is thought of.
via an must remain anonymous source
As for the 40k approved stamped stuff, it's falling under the usual "this is completely legal and fair to play with". The bottom line is that 40k approved models are meant to be in the game in the same way as a rhino or a squad of dire avengers. The issues involve forgeworld releasing constantly updated versions of rules in an effort to balance their creations (they take a lot of feedback through emails).