I certainly wouldn't design a new product for ipad 1 users but - and, admittedly, I don't know how much effort is required - I would consider supporting them. In the same way that I wouldn't design a website for IE8 users, but I would certainly support them.

How old do you think it's reasonable to support tech for nowadays? Bear in mind that the iPad1 was released just three and a half years ago, and was then updated a year later. iOS 6 has only been around for just over a year. So are you suggesting that the maximum life span for a $500-800 piece of tech should be 2 years? Or 1 year? I'd protest at even 3 and a half years, personally.

I brought an iPad 1 to Florida for my grandmother to use. All I needed was Safari and Gmail. Gmail needs iOS6? WTF? Its not Angry Birds, its a damn mail app.

Mail app worked out with Imap, but still!

You should be able to download the latest version of the app that is supported by your version of iOS.

But, the ipad 1 is already 4 years old. That is pretty old when you consider how quickly the market moves.