For anyone traveling to or through Europe, Hutchison Drei, second biggest Austrian operator, started offering 20 GB LTE internet as a standard package to its Austrian Unlimited LTE mobile package. You can buy a starter kit Nimm3 Wertkarte inkl. 100 Freieinheiten for as low as €7.49 ($8.80) on Amazon.de, then charge the prepaid SIM card online with €40 using credit card and then activate the packet Nimm3 Internet Flat 50. You get unlimited data in Austria and 20 GB in other european countries. There is also a possibility to get 10GB for €30 ($35.40) More info on the website of Hutchison Drei (in German).
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