I'm sure this has been ranted about before because I can hardly be the only one.

Android development and the upgrade dance.
Things were worse in the bad old days of eclipse but it's not like they're peachy now, either. Android is one of many platforms I'm developing for - c++ back-end, running on lots of different platforms through a thin bit of platform specific glue.
That's all I care about - that this thin bit of glue just works. I want to write this stuff, forget about it and get on with solving what I feel are real problems, for me, in my code.
The trouble is, I'm never finished writing this and android is one of the worst. With every revision change, google changes *something*. New build system? Why not, you indie developers have *loads* of time and resources to waste on that, don't you? Some weird thing just stops working for no apparent reason? You guys love to drop whatever it was you were working on to figure out what the hell ' android.app.Instrumentation' does and why it can't talk to my main class any more, or why I even need it but nothing in that error message about what I might do to fix this arcane random error.
Google have all the resources in the world, I do not. Yet I have to dance for them, every time I upgrade.
Can you guys please funnel some of your practically infinite resources in to making this stuff 'just work'?

Focus stealing - it winds me up more than is probably reasonable.

I'm there, typing away in my text entry UI widget of choice, purposefully entering text to do some thing as expediently as possible and then... oh, well I'm not any more, am I?

No, because some other window has decided that it needs the keyboard focus for usually no reason whatsoever, other than poor programming manners. Sometimes the same app will keep stealing the focus - oi, mate, I was typing over here? Could you not get the current focus and see that I'm busy?

This happens in chrome's dev tools _a lot_ but dev tools needs a rant all of its own.