EDIT: @mproducer
Most of this is pretty standard boiler plate, and is from contracts signed with many of the biggest game development studios in the business, so I assure you, it's not targeted solely at hobos with you being the only exception.

But I'll assuage your fears.

Though I'd recommend not reading your iTunes agreement, as you would lose all your hair trying to read it like this. I would also recommend having a lawyer familiar with contract law break it down for you if you really want to dive deep.
2.4 you can't grant other people licenses to be able to distribute your game. We are your distributer (your making games availabler), so you can't somehow host your game somewhere else using our tech and not have us involved. And we don't want you to sue us for preventing you from that access or because we need to push an update to the cloud.
4.3 We cannot guarantee HeroCloud devs support. It's in our best interest to ensure you get it, but with tens of thousands of developers it would be too easy for us to get sued for subjective lack of support. If you are interested in purchasing a support contract we can discuss offline, but the price is not free. :-)
5.2 Again, this is standard boiler plate. We can't guarantee to fix everything that a developer deems to be a defect. We'd be getting sued all day long. It's just how software agreements like this works.
7.3 I think you're reading too much into this, it's really just a cover our ass clause that exists in most contracts. But I will ask the board for feedback to see if we can phrase it so you can't read this much into it.
12.2 12.3 We can't provide a contractual price for source licensing that will exist in the future. Nobody can in this type of contract. iTunes can't guarantee that the price of music won't go up. Autodesk won't guarantee you that Max won't cost you 2 million next year. Technically, source license cost has nothing to do with the HeroCloud, but we outline the bail-out additional costs and options. We've actually locked in enough devs at the current pilot price that I'm not sure if we can provide any short term price assurance, but i will discuss with the board if we can provide a "lock in" price for some reasonable window of time.