Yes i think too that the release of the mvp will be an important of the sucess of the token sale. Its a really long token sale with many phase, so in order to attract more investors and gain in visibility, a mvp could be a really good thing.
Yeach, mvp will be very valueable at this time to make people keep their spirit in this awesome project. With the long term roadmap, ehealth needs to bring something new regularly otherwise people will be bored.