Are there any other viable options for travelers besides O2? Any MVNOs I should look at? I am possibly going to be in Prague for two weeks. So a plan with at least 1GB of data would be good. Looks like the O2 plan is 550 CZK ( $28 ) for just the 3GB of data and I assume about 150 CZK ( $8 ) for a SIM card. So looking about about $36 to get up and running for data. Cheaper would be nice of course