Mobile WiFi in Poland

If you don't get replies here, the best site I've found for such questions is Prepaid GSM. Here is their Forum that includes Poland. Beware that answers can get very technical - don't be afraid to ask for clarification: http://www.prepaidgsm.net/forum/forumdisplay.php?s=de1d6546aa8f948af3b51ca3c822209f&f=22

Thanks for the link Harold, it’s good when you want just sim card. I'm more concerned about some pocket wifi, because I use Internet on multiple devices, not just a phone, and don’t have dual sim.

Before leaving, I made my own list of opportunities, which can be useful for someone:

1. PolishWiFi
   a) Unlimited - Yes
   b) Connect devices - up to 10 devices
   c) Price for 7 days - EUR 6.50 / per day - the cheapest
   d) Delivery - EUR 4
   e) Return - Free (prepaid return envelope)

2. Tep
   a) Unlimited - No, 350MB / per day
   b) Connect devices - up to 5 devices
   c) Price for 7 days - EUR 8.95 / per day
   d) Delivery - 19.95 EUR
   e) Return - 14.95 EUR

3. Hippopocket
   a) Unlimited - No, 3GB per loan
   b) Connect devices - up to 10 devices
   c) Price for 7 days - EUR 10.90 / per day
   d) Delivery - 15 EUR
   e) Return - 10 EUR

4. Cellomobile
   a) Unlimited - No, 1GB / per day
   b) Connect devices - up to 5 devices
   c) Price for 7 days - 12.25 EUR / per day - the most expensive
   d) Delivery - no data
   e) Return - no data

5. Wirelesstraveler (3G device)
   a) Unlimited - No, 500mb / per loan
   b) Connect devices - up to 5 devices
   c) Price for 7 days - 12.25 EUR / per day - the most expensive
   d) Delivery - no data
   e) Return - no data