According to photorumors.com “First we will see APS-C mirrorless lenses for Sony NEX and Samsung NX. Tamron is designing 2 compact zoom and one macro:
* Compact standard zoom: 24-50mm f/3.5-5.6 VR
* Compact telezoom: 75-200mm f/4.5-6.3 VR
* Macro: 90mm f/3.5 VR“
And via 43rumors.com we learned that DSLRphoto wrote a facebook post which says that Tamron could soon make m4/3 lenses. The only issue I see with that “rumor” is that Sony is the major shareholder of Tamron and I don’t know if they really want to make the m4/3 sys
read the original post written in spanish: http://www.facebook.com/pages/DSLR-Magazine/91408188189