Overview:

In Austria, Yesss (www.yesss.at) offers a prepaid GSM/UMTS SIM card called "Diskont-Surfen". The Download-Speed is max 1 MBit/s.Yesss uses the GSM1800/2100 UMTS Network from ONE (No EDGE available in the GSM network). HSDPA and UMTS is available in big cities and mostly along highways.

Price:

The Starter Package is 19,99 Eur and includes 1 GB Data. The 1 GB are valid for 12 months.
You can buy the card online (shipping only to Austrian addresses) or directly in one of the Hofer-Supermarkets.

How to buy Top up Cards:
10 Euro "Ladebons" (Topup Cards) are not usable.
20 Euro "Ladebons" are available at all Post-Stores and many other Shops.

Misc Info:

A 20 Euros recharge buy 1GB(valid for 12 Month) or 2 GB(valid for 1 Month) if you switch to "Poweroption" Tariff.
Recharge and switching between Tariffs ist only possible via this Website.
The SIM card is also enabled for voice calls (9 ct./min) and SMS (13 ct.).
The 5 digit password for the web page is included in the letter which was part of the SIM card package. It's also possible to check the remaining data volume via this page.

Activation:
There is no special activation nessesary. Just buy the card at a Hofer Store with no ID or what so ever for 19.99€, insert the SIM to your Phone or Data Card.
Telephone-No. of Customer-Support is 0820-810810

Misc:

• APN to use: web.yesss.at, no username or password
• Proxy-server: 194.24.128.118, port 9201 (not needed for PCs and also not needed in most phones)
  
• Connection-type: wap (not needed for PCs and also not needed in most phones)

Links:

• Coverage 1800 Mhz

Alternatives:

• A1 B.Free
• 3-Austria