The thing that sets me off is the statement: "As soon as your invitation code hatches we will send it to your inbox." Cute way of saying, "We'll send you and invitation whenever we feel like it; but in the meantime we will do whatever we like with your email address." I did notice the guarantee "We promise not to spam!", but honestly that promise is as strong as the typeface used to display it.
Another factor that tips me off is that they seem to be violating one of the basics of good web application design: HAVE A FOCUS!!! Like Streamy, there are too many things going on here that promise a lot of possibilities but seem too much to deliver realistically. I would believe them more if they took perhaps ONE or at most TWO of the things they claim to be releasing and said that this product should be available soon...
Given the technology they are developing, I would hope to see a blog article with some substance talking about some of the cutting edge technology that is at least tangentially related to what they are claiming to be able to deliver. Instead, there are some pics with text of little substance that seem to foster an image of "coolness" and design savvy but no indication that they have any real technical ability to deliver what they are advertising.
But of course, I could be wrong.... hopefully somebody here can disprove my cynicism (see the reply button below this comment Aviary people/developers/employees?!??!?!).