Does the Stalker V3 which has a different board shape, without the corner cutouts and a little shorter than the V2.3 , fit in the plastic box you have been selling for V2.3?
Thanks for your question!
The size of Stalker V3 is 86.74mm x 60.96mm, and it can be put inside of this plastic enclosure for V2.3: http://www.seeedstudio.com/depot/Seeeduino-Stalker-v2-enclosure-p-734.html?cPath=55_60
Is only the case compatible or also the mounting holes?
Both different. V3 is smaller than v2.3, so it can plugged into the box of v2.3. But we may make a new box for v3 alone.