i honestly think that buttonless is the way for android.not only will it give more real estate to the user by maintaining the same size,but also they can go for a proper unibody design which can help them to accommodate longer battery.
yep.the build quality feels a bit plasticky and cheap.even for my note it feels very cheap when i hold it in comparison to the iphone 4.
but,there is also a plus side to it.the covers cost around 300 bucks on ebay and i shit you not when i say they look as good as the orignal