Having checked the online store listing for Delphi XE3 which is now up, it appears that the upgrade eligibility window for XE3 may have been nudged open ever-so-slightly wider.
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I just got an email from Embarcadero announcing the availability of XE3 for download from the Maintenance Portal. Both a 51 MB web installer and a 3.1 GB ISO are available. I don’t have any public links, and presumably anyone on SA will have received their notifications directly already. But for anyone not on SA, the public links will presumably be posted or announced shortly.