I agree minutes are too slow for confirmation times, but you over-generalize cryptocoin 2.0s are all as slow as this, as some of them are not. For instance a Bitshares confirmation is 15 seconds with a lot more security per confirmation than Bitcoin. Nxt is also in the process of improving their PoS implementation for much quicker confirmations and more protection versus attacks via transparent forging.
You also don't seem to understand how difficult of a problem it is to make a secure decentralized cryptocurrencies whose confirmations are quicker than Bitcoins. When you start getting faster than 1 minute or so confirmation times with the older PoW models, there are a lot of issues that pop up such as stale/orphan blocks and a greater likelihood of being forked. So, these systems need to be redesigned from the ground up for quicker confirmations to be possible. If this was easy to do it would have been done a long time ago, but we are just now seeing quicker and redesigned algorithms hitting the market.
I'd venture to say we may NEVER see instant confirmations/transactions that have the same amount of security as current Cryptocurrency confirmations... at least not one that is a purely decentralized solution. The
legitly (without forks, stales, etc) fastest Cryptocurrency in development I've seen has just 5 second block times with 25 seconds to only have a 0.01% probability of a reversal. That in itself is a huge innovation compared to current cryptocoins and it is far from instant. I'm talking about Nimblecoin by the way.
http://nimblecoin.com/Windows 95 was a masterpiece for its time.
+1
Also if a better solution ever pops up.. It doesn't make old cryptos obsolete since they can adopt the better technology and implement it themselves.