When you build a curvy transport belt with an inserter right in front of it, gears can fall off the transport belt and congest it (May happen with other items too). Example: http://www.abload.de/img/buguayd8.png Actually, even without the curvy belt the gears act odd: http://www.abload.de/img/bug26a...

I agree, it would save a lot of space.
If you want to do it now, you need to build something like this, which is not always possible because there isn't enough space:

The stream in the pipes actually gets thinner if the pressure is low (If you have some windows on some pipes, you can see it). But a number showing the actually pressure would be really useful for optimizing.

You don't craft it. You need a furnace with iron plates + coal to make steel plates. (I was also kind of confused in the beginning)

Like this:

There is actually a small hidden button on the bottom right which links to the forum

But I agree, a more visible button would be neat.

Another minor suggestion I have are better stats. For example, show us the output per minute or per day or whatever on assembling machines and ovens, so it is easier to optimize our factory.

Maybe one of the devs should go over to this forum: http://facepunch.com/showthread.php?t=1 ... p=39520629 and do some advertising. There seems to be a great number of people who are interested in the game.

So, to be honest, it doesn't seem like the game is going to pick up enough on pledges to meet the goal. Although you stated you may give up on this project, I think it just needs more time. This game is still rather unknown, and starting a Kickstarter so soon doesn't seem to be the greatest idea. So...