These are okay:
> This application will be able to:
> Read Tweets from your timeline.
> See who you follow,
These are less okay:
> and follow new people.
> Update your profile.
> Post Tweets for you.
> See your email address.
Good luck with it all.
If you still do not feel comfortable with Twitter login, you can login via Facebook which has minimal permissions.
At the moment, it is not possible to accept startup submissions via email or a form. It would make things quite hard to manage for us. We want to create an active community and not just merely a startup directory where you list your startup for a backlink and then forget about it. Startup listing is just a part of our future goals at StartupBase. There will be many more things.