Mint now lets users keep track of their Bitcoins
thenextweb.com
thenextweb.com
Mint asks for your API key, which Coinbase implements rather poorly. Your API key will grant any application FULL ACCESS to your Coinbase account, so if Mint gets compromised, the attacker can send your Bitcoin to another account. And Bitcoin transactions are irreversible.
Yes, you do give Mint your bank account credentials, but if someone steals your username/password and use it to send a transaction, you can get it reversed.
Mint can easily fix this by using Coinbase's OAuth API instead of using an API Key, which allows for selective permissions (read-only) to be set.
However I do see how the ledger comes into play for your personal coin addresses. That is actually a powerful concept and pretty cool.
From a Mint perspective adding meta-data for coin transactions would be a good start to help categorize coin spends/receives. Another approach would be well known receive address sets. For example 'Grocery Store X' would have one (or multiple) well known 'receive addresses' that Mint could categorize appropriately.
What Mint can't do without access to the API is know all of your owned addresses and aggregate their balances into one. Now as for the rest of your ideas, I'm not from California, but I honestly don't see any vendors signing up to use Bitcoins. Everywhere I go will take the Paypal card, but nowhere is offering to take bitcoin via NFC or QR code. Maybe "if you build it they will come."
I would like to have a way to export a global public key from my private key, such that customers could generate their own receiving addresses (for my wallet) without any sort of access to my private key, or third party. I have no idea if this is even a thing, but I also can't say for sure that it's not possible. If it were possible, I think it would also make it possible to pin the exact balance of a wallet, so I suspect it's not possible/an undesirable idea.
I did report it once and got back a message saying "sorry, we can't fix your existing records", but they clearly made no attempt to fix it for new ones either.
More than simply building a savings account, the other side of the coin is making your spending more meaningful by reducing impulsive buying. Saving a few bucks here and there with coupons or promotional discount is way too easy to spoil with just one thoughtless purchase.
[1] Not even GNU cash gets this right. See: http://www.mathstat.dal.ca/~selinger/accounting/gnucash.html
Also, I want a single place to see my networth as it's a huge factor in understanding my progression towards retirement. Having multiple interfaces makes this difficult.
I don't log in much nowadays, but I remember it is pretty easy to add asset values and get them figured into net worth. You have to keep manually-input stuff updated, of course.
Several of the companies that offer bank feeds ("add your account") use Yodlee's data.
Where most online tools fail is with investments. Especially real estate (rentals in my case), which is where most of my money is allocated.
If anyone is interested in an account with us for user research, leave a reply. It's normally $100 a year. I'll circumvent that.
Really, there's nothing out there for the power user. I believe that market would pay for a good product that doesn't try to push stuff on them (ahem... wealthfront).
If you're looking for a user with real estate assets, I'd be interested in helping by being a tester.
We (HelloWallet) are much more focused on holistic financial wellness. But we are working on some very exciting investment-oriented products as we speak.
It still would be interesting to get your perspective if you want to create an account:
https://my.hellowallet.com/PublicHWWebApp.html?p=hackernews#...
https://my.hellowallet.com/PublicHWWebApp.html?p=hackernews#...