The 5th MVNO is about to launch in Poland (probably on 9th Apr). It's the first "supermarket" MVNO brand in Poland (prepaid only). It will run on Plus network. According to rumours, basic rates will be 0.49 PLN/min national calls (of course 1/1 debiting no setup fee), 0.20 PLN national SMS. The starter will cost 9.99 PLN with 20 minutes credit. SIMs and top-ups will be available only in about 360 Carrefour supermarkets countrywide. Extra minutes to Mova and landlines will be available for participants of "Rodziynka", the Carrefour Poland loyalty program. 1 PLN is about 0.29 EUR now.
http://www.carrefourmova.pl/ - as of today, it's a teaser only - the slogan says: "Get ready for advantageous connections!".
About the name of the brand. It's sounds a little bit like Spanish Carrefour Movil, but I think it's an accidental similarity. "Mova" seems to me as misspelled "mowa" which is Polish for speech, talking, oration, language, dialect (depending on the context). There's no "parallel" Champion brand like in Greece since about a year ago all the Champion supermarkets here were rebranded to Carrefour Express. And the "1 Mobile" name like in Belgium/Italy would be rather weird in Polish
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