Great, cause Ill be a grandpa before this comes out..

But seriously, realistically, what grandmas is going to use a bitcoin device that cant or dosent have a smart phone..
This argument is lame..
Talking about a market genre thats worthless to cater to...
I might as well make guns for hunting, catered to animal rights activists.. Cause you know.. they hunt too...
Then again, the iPhone was easy/simple to use, but wasn't targeted towards grandmas. Some grandmas use them anyway though. :p
Some people just want a device that works. I like to tinker with my computers, but my phone? No, I don't want to deal with having to root it to get the features I want. I want something that is basically perfect from the get go, so I bought an iPhone. It does the job perfectly for me. It's easy to use, it does what I want, and more importantly, it always works. And I don't ever have to tinker with it.
So far, there are no Bitcoin wallets available from the app store (that don't eventually get removed by Apple), which means if you want to use Bitcoin, you have to jailbreak or use the buggy Android platform. I see a standalone device being much more reliable than any application running on Android, and not many people want to jailbreak their iphones either.
I can see the merit of having a bitcoin wallet on a smartphone, but there's also many benefits to releasing a standalone device. There's certainly a market for both.