I wish more hi-dpi screens were on the market....
seems like I can't find any desktop displays that do better than 90 dpi unless i buy a small screen.
I think there is a magic "tipping point" that we are getting close to.
needs to have a device that is thin, light weight, runs for a long tine on a charge, tough enough for casual users getting around with rain and droping it, and has to be readable in daylight, and for less than a grand USD.
the closer we get on that set of things the more the general public will be able to buy it and be willing to try it out.
ideally though the price point needs to get around $299.00 +- $100.00
but getting all the bits in that small box and at that magic price is a hard thing to do just yet.