To be fair, it took them ages to start getting serious about Python. It's still not what I'd call a first-class citizen, in that boto (even with paid AWS employees on it) lacks support for things like their ElastiCache discovery protocol (last I checked earlier in the year).

Source: I heavily contributed to boto in years past. It has progressed by leaps and bounds since then, but I still don't see it mentioned in the AWS blog posts when Ruby/Java/PHP get new shinies.