There is actually another bol.com app called Bluester that seems very similar and does appear to be made on behalf of bol.com itself (at least, the creators claim to be partners). It's even listed as the really big spotlight app on the main page of the store for me.
I hope that app won't steal your thunder.
No, that's also a third party app. If you're part of the affiliate network you're automatically a partner. Also the only bol.com logo you're allowed to use is the "Partner of" logo.
Also, I'm happy with them being the spotlight app now if that means mine will be spotlighted some time when W8 is actually out and has more market share.