I have the same problem - so gutting!
I used UK Transport extensively for buses, it was easier than getting my phone out as I had it in the up button shortcut. I had just found out how to make bus stops "favorite" so I could check the next bus while I was sitting at home or in the pub.
That was really of the killer app for me, that and to control my music and of course notifications.
My Pebble has also developed a feature where the battery will be on charge all night then the next day the screen is blank and the battery is dead so I don't think it will last much longer.
I am thinking of jacking in the whole smart watch thing until someone makes an attractive e-ink watch... Such a shame about Vector, I would have snapped their hand off now.