I have recently made the switch from Ecplise to ST3 and am absolutely loving it! Thanks, well worth the money, I reckon.
I too support the idea of an *optional* toolbar +/ API. There are times when I am using ST and a browser for development. I need the mouse for the browser and if I just want to drag and drop something in ST (ie is faster than the keyboard) it means I have to drop the mouse, use the keyboard then return to the mouse. Much easier to quickly hit the Save icon on the way past. This is a really, really picky and minor complaint so take it with the requisite grain of salt!
I implemented the suggested Default.sublime-mousemap and it workes fine as another way to keep the mouse in my hand!
Thanks for a great product.