recently stumbled on an interesting coin POSW. POSW is an acronym for 'proof of stake wallet' and offers staking as a service via their website www.poswallet.com.
In addition to their website business they also created their own coin. Holders of POSW coin are paid dividends based on profits from the website in addition to potential staking rewards. There has been quite a buzz recently after one of the leading hardware wallet manufactures (Ledger) announced they will add support for POSW on their hardware devices.
Although a small coin (market ~2million at time of post) I see this as a fantastic value considering their upcoming ledger integration as well as the general business they are currently running. As more coins come to market offering some form of masternode / staking rewards I see this service becoming a huge industry in of itself. 
The one hurdle I believe they will have to overcome before they reach a mass market is offering this service where their customers maintain ownership / full control of the assets (as of now you have to deposit funds into an online / hot wallet to stake). I just don't see investors giving up total control of more than 10% of their holdings in a 3rd party website that can either be hacked or stolen at any time. Cold storage staking would open up the doors to massive wealth and is in my opinion a clear requirement to progressing forward in this arena.
What do you guys think?
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