Here's the menu (shame there's no food)
I felt a bit intrusive as it was just me and the guy working there, but sat and enjoyed the ambience of the place for awhile whilst enjoying a Vietnamese style iced coffee.
There's no actual bonsai here for sale (that I could see) which is probably a good thing but there are plenty to look at!
Oh I stand corrected there were probably some out the back for sale based on a blog post I just found on Consider the Sauce.
They also have a facebook page.