How about exchange rate charts? CSV Exports of the values?

Both topics are on our feature list, but I can't tell you when they are ready.
Is it used as a directory too? I think it would be nice if i could send users messages and stuff via their address.
Actually we didn't thought of that feature till now, we'll have a look at it.
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OK, I retried but there seems to be one extra line with totals ONLY after I press refresh. Also the numbers are not quite right, I now have
0.42415736 BTC
1210581.00524417 DOGE
Please fix

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Also, national currencies for fiat money are planned?

BTC balance:
blockchain.info shows the same balance as we do. Do you have multiple addresses in your wallet? We can't see your addresses siblings.
Doge balance:
dogechain.info shows that you have exactly that balance that is displayed on our webapp. The reason of this could be the same as for the BTC balance.
I don't know exactly what you mean by the last question, but national currencies are FIAT money. We take your location setting of your browser and try to find an exchate rate fitting for you. If you don't want to see for example Dollar, change your setting to DE to see EUR.