There have been 141 bugs141 bugs posted, with 100 completed100 completed, 23 bydesign23 bydesign, 7 norepro7 norepro and 2 deferred2 deferred, leaving 11 unaddressed so far, which isn't nice, but all in all bugs have been handled properly and promptly so far.
On the other hand there have been 118 feature-requests118 feature-requests posted, with only 23 completed23 completed, 3 bydesign3 bydesign, 20 declined20 declined, 12 deferred12 deferred and 4 planned4 planned, so a whopping 56 are not even acknowledged/classified officially as of today. (Note that a couple of feature requests are covered in API V2 Musings: What would you like to seeAPI V2 Musings: What would you like to see as well.)
A more recent and granular update regarding this has been Kevins answerKevins answer to Timeline for v2.0 of the API?Timeline for v2.0 of the API?, which added bugs and improvements to the API v2 theme:
Recently I've fast forwarded through Jeffs Interview to get some clues eventually, and actually did - please see Selective API oriented transcript fragment of Jeffs Code Camp Video InterviewSelective API oriented transcript fragment of Jeffs Code Camp Video Interview for a bit more context, but essentially Jeff is expressing serious doubts about the feasibility of a write enabled API:
I'd rather say it is a strong hint towards a necessary shift in pace and scope in order to let the API evolve more agile with the platform as best as possible under the current read only restriction. I'd personally pretty much prefer an API keeping track of essential and stabilized platform improvements (e.g. Linked QuestionsLinked Questions, Tag Wikis, Tag Info Pages etc.) over waiting for the golden age of writing (and authentication), which apparently isn't going to happen anytime soon, if ever.