For those looking for something they can try now. The November 2015 update of Autodesk Fusion 360 added a V Carve feature. You create a sketch, add your design (need to explode text so it'll carve), then go into the CAM environment create a setup, then use the 2D engrave operation (remember to set the bottom depth to the bottom of the stock) and it'll v-carve the design. Fusion 360 is free for enthusiast/startup use. I generate the g-code from Fusion and am currently importing it back into Easel (using the new feature in Easel) to send to the X-Carve. Works quite well so far, though I'm fairly new at CNC - I've been using Fusion 360 for 3D printed designs for almost 2 years and now I can use it for both 3D printing and CNC.
I should also mention that Fusion works for both Windows and Mac.