The idea is to decentralize even more by making the technology easier to use by a wider audience. A BTC blackbox, a BTC credit card etc (or rpietila's paper BTC IOUs - hmmm like Ripple
) are what's needed.
We need to take the geek side out of the Bitcoin use. Make it easy to use so people can simply ignore the technology behind it and use it as they would any other currency (and each device should be a miner, to process transactions and secure the network). That's when mass adoption can really start.
OTOH, I also think that Bitcoin will be superseded, eventually, and possibly even by a GOV-launched coin (best way to beat BTC is to make it irrelevant), unless we reach critical mass within a short period of time (less than 10 years from introduction).
I can't imagine people would happily adapt some coin created by governments.
Because everybody knows who Satoshi is? What if he/it really was/were, say, the IRA?
looking at facebook we saw many many other social networks pop up and disappear on the web before it was hugely adapted around the globe. (and that took 7-8 years!)
Looking at MySpace... they were big when FB wasn't even there (and who remembers friendster?).
i can't look in the future but also can't imagine some other cryptocurrency suddenly pop up and establish a market like btc has in last years.
Look at the MySpace/Facebook analogy. One is going nowhere and the other "to da moon".
The founders of a company are usually able to grow it to a certain size. The you need new people, "the suits", to grow it even bigger. It's like people are stuck within a certain 1-10 factor. If you want to reach 100, you need new people at 10.
Bitcoin is the founding coin, who's to say it'll grow enough before it runs out of steam? (maybe Bitcoin 2.0 will be the next Bitcoin, I'm not discounting the possibility)
) 
