Now if only they would support HD wallets so you don't have to backup your wallet after every transaction...
Those companies have custody of the user's private keys, meaning that there exists the potential for government seizure / hacking theft of users' coins.
I'm just not a big fan of blockchain.info, so I have a strong reaction to midas's gushing above. What does blockchain.info do that "wasn't possible before"? It can't take credit for Bitcoin itself. It's like an online bank? Doesn't seem very innovative in that sense.
Again, the things that might seem like pluses (being able to access your bitcoins from any computer with an internet connection and a browser; keeping your own keys) are also really dangerous. I'd rather just use an actual application that lets me keep my own keys, without being subject to the browser's attack surface.
Which authorities and laws is the company subject to?
It'd be kind of like an American payroll company calling themselves Automated Clearing House. It doesn't make sense, because ACH is actually the shared technology, not created by them, that enables them to do their work. It's unfair because people might hear about ACH transfers and think they can only be done by this one company.
blockchain.info doesn't control the Bitcoin blockchain, and they shouldn't control the name either.
Interestingly, there's a good chance that the sum of the valuations given to these Bitcoin companies in the past year is equal to a not insignificant percentage of the total value of all the Bitcoin in circulation[1].
Xapo[2] and Coinbase[3] alone were both reportedly valued at more than $100 million in their last rounds, and I wouldn't be surprised if Blockchain received a similar valuation.
From a technical perspective, the current Bitcoin chart[4] doesn't look good, and hasn't for a while[5]. If there isn't a sustained recovery, the sum of the valuations investors have given Bitcoin-related startups could one day exceed the value of all the Bitcoin in circulation.
[1] https://blockchain.info/charts/market-cap
[2] http://blogs.wsj.com/digits/2014/07/08/bitcoin-startup-xapo-...
[3] http://blogs.wsj.com/digits/2013/12/12/andreessen-boosts-bit...
[1] https://www.opencompany.co.uk/company/08880875/blockchainuk-... [2] https://www.opencompany.co.uk/company/08858277/blockchain-lt...
I naturally assume that a .info site is going to be a scam or of poor quality or fleeting at most.
I wonder if they will buy themselves the .com with all that cash?