I couldn't quickly see an OSC Labview component, so you might have to craft something yourself.
There are a couple of nice utilities oscsend and oscdump which you can use on the command line to send and receive OSC packets. This might be the quickest way to get going.
If you need more power, or if the idea of using command line tools makes you sick, If labview can send and receive UDP packets, you can either make a general purpose OSC component in LabView or you can make something that sends packets that are mostly hand made but with tiny bits of customization.
If this is all a huge pain, you could write a simple program on the Make Controller that opens the USB port (or waits for TCP connections, or both) and implement a simple two or three byte protocol that any language can interface to. You could say W[x][y] - which might Write value y to motor X, and R[x] which might read the analog ins and return R[x][y] - where y is the value.
Labview has been updated since we worked on this, but if you use ascii com, they have some nice facilities for tcpip. Just dont try to use binary unless you want to add tons of complexity. I have also used serial communication, which LV treats as a VISA device. Don't know about USB.