On the status page now <a href="http://status.heroku.com/incidents/2558" rel="nofollow">http://status.heroku.com/incidents/2558</a>
Same issue here, CLI logout works, login gives invalid request. CLI deploys giving 500 error prior. Funny, we're just pricing out switching to another provider (or using something like Hatchbox.io) yesterday.
Now updated to say the entire Platform API is unavailable. <a href="https://status.heroku.com/incidents/2558" rel="nofollow">https://status.heroku.com/incidents/2558</a><p>Edit: Maybe back?