That info is out of date. There have now been reported failures of the 722A. As of late October we're up to 722H apparently.
06K 145 702 J - Revision 1 – Failures reported.
06K 145 702 N - Revision 2 – Failures reported.
06K 145 722 A - Revision 3 – Failures reported.
06K 145 722 H - Revision 4 - No known failures, Released late October
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