You might be aware that Snapchat is going IPO in the future.
Will it end up being a power player?
Eaten by FB?
No matter what, it can definitely be a viable part of your marketing if you're building brand/story awareness.
has some excellent uses of Snapchat; I personally like #4:
4. Your best and worst content alike goes away in 24 hours.
Too short for me... but perhaps super for speed is everything folk.