Get as far as you can on $5 of gas and drive to friends and family's houses running msconfig and cleaning up crapware to make their computer run faster. Easily $20 - $40 a pop. Protip: reinvest a little profit into more gas, make even more money!
Obviously you should talk to a lawyer; most immigration lawyers will give you a free hour of consultation to ask the general questions.
That said, there are any number of valid ways. If they're not taking a salary from the startup, for now they can enter on a basic business visa (B2 I believe) while they "explore opportunities", but they cannot make any money from a US source. If they are making money, you may be able to get them a basic employment visa. You might also be able to set up a Canadian corporation and they can be a transfer from one entity to the other. If they have enough money they can get an investor visa (E2 I think, takes anywhere from $500k - $1M)... Like I said, there are a huge number of different options, only a lawyer can advise you on which one is best/easiest/most appropriate.
Having a features page which explains that in a little more detail might be beneficial. Same with have a feature 'grid' that compares your service to others.
I have signed up and am testing it out, so far it looks very easy to use. I do like the visualization with Google Maps to get various response times. Very impressive.
Your Pricing and Signup link is deceiving. You should separate the pricing since that what I expect to see when I click on that link.
Other than that, I think the idea is straight forward and decently presented. I would like you to highlight on that front page what makes you different (read: exceptional) than other providers.
Certainly more the former, but I think that the latter will come as a natural result. I would love to learn both the algorithm details/design as you mentioned and at the same time, some of the attacks available on them (my assumption here is of course that there are a set number of attacks that people would try on a new algorithm; it's entirely possible that is not the case :) ).
This was my initial thought as well, but I just can't see myself saying "Hmm.. no camera in the iPod, guess I'll have to get the iPhone instead and just not use the phone part of it." I doubt the camera functionality would ever be enough to push people into the cost of a new phone (contracts, initial outlay, etc.).
I like sites that mix liquid width style and fixed width (centered) content. I vary my site's width with how much content there will be and try to balance the whitespace out with the amount of text/content, usually between 800 and 950 pixels wide.
As for landing page, I think it should highlight whatever is the most important part of your site. The first thing I should notice is what you do and if I'm interested, have a well defined navigation so I can learn more.
On a truly personal note, I love big footers from both a design and usability point of view :)
This is a little misleading... most launches that are "stealth" really aren't, because they're just trying to build hype or make sure their servers don't get overwhelmed because people already know about it.
What this is describing is the majority of product launches, where you put it out there and no one comes. You're not really being stealth about it, it's more like the Unknown Launch.
Set up a website to chronicle your journey posting photos, interviews (even summaries), etc. and put a donate button on it. I wwould donate once I see you're doing it and committed.
I think the problem is one of market... You could sell the device but you wouldn't have a lot of content to sell with it (which is where the money is). Amazon also has wireless deals to make content even easier to access.
It would have a tough time being a sustainable business given the costs of prototyping, making deals with wireless providers, etc. and the alternative of just offering the device just doesn't seem worth the time.