by the way, over the past 5-7 days, the Euro gained 3-4 % vs. the USD. Did you consider this as potential reason?
Yes, and it should have the opposite effect. People should hold their EUR knowing it will buy more BTC (from the USD order book) the next day. Perhaps even sell for EUR and hope to buy back cheaper because USD is the dominant currency in BTC trading. Unless they think BTC will be cost at least 0.5% more in USD the next day. Which means the EUR, GBP and AUD buyers must have very strong belief in price increase. And I assume the opposite is true for the USD users who are selling, because they are not selling for EUR, GBP or AUD.
I thought I am the only one taking advantage of this. Yesterday for example, hours long the first few asks where exactly the same as the asks on USD but 2.5% higher. That was in the 10.50 area = more than 13.80$.

Imagine you could send MTG/EUR via Bitinstant to Bitstamp or BTC-e... I'd say EUR above 1.30$ is good...
