The EFI-X thing turns into quite a never ending story (see our recent reports here and here). So although june, 23rd – originally announced EFI-X release date – has passed by without any astonishing news on the EFI-X website, there have been some rumors in forums.
Forums tell EFI-X will be priced at 80€ (~125USD). EFI-X will not sell to consumers. See a privisional list of countries selling EFI-X here – though yet no retail stores have been named either. They want to start shipping in about 4 weeks (end of july).
Moreover it seems like only Gigabyte motherboards are fully supported by that device. We hope to receive an NFR copy of EFI-X soon to keep you updated with details.