Poland sim card
 

What's the easiest sim card to get in Poland for a few data usage of google map? Thanks.

Plus prepaid sim card, and then activate the 150MB pack for 9 PLN: Pakiety Internetowe w Plusie na Kart?

For even less hassle you can go for iPlus na kartę which costs 20 PLN (pure data sim) and lets you surf for 0,30 PLN / MB.

Or for even less hassle, get Heyah, which costs 0.2 Zl/MB.

Are they easy to get? I will arrive this weekend in Gdansk, where can I find places selling the sim cards?

Heyah is availible in kiosks around Poland, might be a bit harder to get hold of than Plus, which is (obviously) available in every Plus dealer.

FYI. I got a Heyah sim and the internet nonstop is free for 7 days.

However, it is wap only, which means you need all your traffic to transfer through a proxy. But already enough for google maps.