You're very welcome to post them here, now.
It may be a very useful way for you to gain some early feedback - though we may not be the target audience for your startup.
Personally, I'm waiting for the start of the long week, as:
a) I have a competitor who can probably duplicate my innovations in about a month, and they already have users - though not 10% of the numbers I hope to reach.
b) I want my testers to come to the project with no preconceived ideas, as exposition/copy is critical to my project.
All the best,
Chris.