I would agree with andrewcooke, but it might also be a bit back heavy. If the rocket doesn't roll over, maybe it detaches in a more dangerous way (falling forward and down into the rocket as opposed to back and away). Who knows.... I don't think there will be documentation online that answers a discrete question like this. Good question though!
Do you not constantly read about all the lawsuits over these apps? Do you seriously think some girl is going to want to go out with some random guy on a whim? I'd be terrified to meet the person who would be using this app.
And seriously? A "rap" video as your advertisement? That has got to be the worst way to get your point across.
No one needs a new "dating app" and all your "customers" are just going to be creepers. Before long, you'll get sued for child endangerment or some such thing.
Android is free to develop for, has a larger marketshare, and does not require any specific system to program on.
iOS costs money each year to develop for, requires a Mac to program on, requires your app to submit to approval for every update, and is extremely locked down and terrible.
I think I've made it clear what my answer is.
What kind of app are you planning on making? Free or paid? Game or utility?
Unfortunately, I just have a few different virtual machines with Windows XP (1 unpatched (IE6) and 1 patched (IE7)). I run Windows 7 with IE9 (if it works in IE7 and IE9, its a safe bet that it works in IE8). I also have Firefox and Chrome installed. If it works in Chrome, it (should) work in Safari since they both use Webkit. Lastly, I have 1 older version of firefox installed on one of my VMs (Firefox 3) because that is what my job still uses.
Anyway, it sucks. That's one of the reasons why being a web developer is grueling work, especially when working with older versions of IE. At this point, I pretty much just do a check to see if they are using a browser that has been released in the last 5 years. If they aren't, I display a warning (not an error) and say that the website might not function properly.
This can be a useful website though, if you are purely looking for visual compatibility: http://browsershots.org/
Unfortunately, that's the million dollar question. All start-ups try to ask the same thing to launch a product that is actually needed.
Most people these days don't know what they want or need through an online application. The difficulty of online applications is you have to make the person realize how useful an application is, and why they should continue to use it.
I don't really have any ideas for you, sorry. If I did, I'd have made them a long time ago :-/
I'm confused. Is this only for Mac (it looks like it from the screenshots)? I find it a terrible business move to have a start-up release their product only for a platform that is much less than 10% of the world's personal computing marketshare.
It looks nice, but I think you have shot yourself in the foot for trying to release a Mac app first. Windows doesn't have any good email application that is still developed anymore. Pretty much the choices are Outlook and Thunderbird (the latter of which was just announced would have no more feature developing). People are looking for the next email client to flock to...
It looks nice, but I would suggest adding some color. Having just plain black text (with some green) on a white background is kind of boring and doesn't get the hype of your startup across. This landing page doesn't make me "excited" to put in my email.
Try adding a cool background image and/or more color.