Snowmobiles provide a great many advantages to snowboarders in the backcountry. They can get you to places that would be to far for a day hike, or allow for several runs at a location that you can only take one or two by hiking. A nice kicker can be hit twice as many times spending your efforts in the air rather than packing a trail.
However, it is not all fun and games. There is a lot to know and understand about the backcountry, before you start to push your boundaries way out of bounds. Avalanches, rocks, holes, trees and people can be dangerous things when mixed with snowmobiles. Don’t die of ignorance! Take an AVALANCHE course (you should do this anyway, if you spend time in the backcountry). Taken with respect, there is plenty of “safe” fun out there.
Besides the dangers, using snowmobiles to enhance yur snowboarding can be a little frustrating. Just ask any snowmobile or boat owner - they are machines - they do break and they have limits. It is important to learn the limits of your machine before getting 10 miles back with a couple of your bros. Travelling in pairs of snowmobiles is best.