We have heard the current technical preview for Windows 10 is not exactly bug free, and Tom Warren himself has suggested that you may not want to use it on your main handset.
Of course most of us only have one Windows Phone, which may mean forgoing the technical preview if it means your phone will be unreliable.
Fortunately, unlike Windows Phone Preview for Developers, it appears you may be able to try out the Technical Preview and still get back to safe ground if things do not work out.
Gabriel Aul, the head of the Windows Phone Insider program, tweeted the following:
— Gabriel Aul (@GabeAul) February 5, 2015
Hopefully the feature will be ready by the time of the consumer technical preview of WM10, which should open up the pool of users who can safely try it out immensely.