Two "could be better" points. Go has a hard memory limit per instance of ~ 15 GB; bad when you want to pin lots of data in memory. Russ says this issue is being tracked (2142) and will get fixed after Go 1 gets out the door. So patience will fix this one.
Second, there needs to be more examples of Go code out int the wild for others to share and look at. Using the template package got me stuck, for example, and seeing code cleared up my issue but that was hard to find. This we can all help with by using Go and talking about it. Again patience takes care of this issue as well.
Other than these items, do yourself a favor and start using the magic that is Go!
Don't be afraid to read the code in the stdlib, is very readable.