I did as I promised ;) Now te watch has a 2,2 ili lcd, and so far I'm really happy with it. Though I didn't make the BGA pcb, because I found it unnecesarry - with the foto pcb making method I was albe to make the paths thinner, and so the board got smaller. I added the one button on/off feature. One thing I'm hesitateing on is the touch panel. I ordered four 2" touch panels from aliexpress, but they need quite a force to detect a touch - in contrast to the nokia one. So far I decided to use the nokia touch, but I'm going to cut it a bit.
Regarding the software - currently I'm making a app for a bike counter. Also I have to design a movable case. I want to be albe to swap it between the bike and my wrist as quickly as possible ;)
Soon I'll post some pictures showing the progress ;)
See You all !