Got the Windows 10 Technical Preview update for my Lumia 630. Lots of bugs have to be improved. Most apps stops working. Most of the time device is hanging. It becomes too slow.
Wrong forum, and this TP is _not_ ready or meant to be used on a daily driver anyway. The battery, heat and app issues have been clearly mentioned and should not come as a surprise.. This IMO is a very unstable and rough early build more like an alpha.. I'll wait a month or two and see where we are then.
It's certainly way less mature than the Desktop build.