[nickfisher]

You're quite right -- Next is nowhere near complete, and still very much a beta. We're working on the "release early, iterate often" approach. (See http://www.codinghorror.com/blog/2009/12/version-1-sucks-but... http://successfulsoftware.net/2007/08/07/if-you-arent-embarr...)

The main reason is quite obviously for feedback. SoundCloud is a community-driven site, and we want to get really early feedback about features, design, etc. Another part of the feedback is exactly what's happening here with sharing our techniques and seeing the results. Hopefully the outcome of this blog post is that some other people will learn something, but also that some people will point out things so that we ourselves can learn.

> there are many bugs, most features are not implemented,

We're definitely aware of the features not yet implemented, but if you find bugs (or are really missing a particular feature), please do use the feedback form to let us know!

Cheers, Nick

[cmicali]

I've been using the feedback feature early and often (nice job putting it so front and center also!)

I think the new design and architecture is coming out great and I don't mean to discourage experience sharing. If anything, better way to have said would be:

I hope that you will post a few follow-ups to this as you get closer to release what/if anything has changed in your stack, approach, and gotchas found building this complex of a single page/backbone app.

Thanks!

[nickfisher]

Definitely. There already have been some changes since I wrote the post this week, but they'll have to wait until the next exciting instalment. :)