There has been talk about the EX1 having a user performed upgrade, possibly around new year, to enable use of the SxS-1 cards and the Sony memory stick adaptor. I have heard nothing about any other enhancements so anything else is speculation or wishful thinking (a balance between keeping EX1 early adopters sweet and maintaining an incentive to upgrade, allied with what is technically possible). Presumably the upgrade will be by USB to the maintenance port; I think Sony have said that it will be at the user's risk.

The EX1R has a simpler upgrade process which seems to involve putting the upgrade file on an SxS card, popping it in the camera and selecting menu>upgrade. Presumably this removes a point of failure in that if the power fails or the computer doing the USB upgrade fails mid-way, the news is all bad.

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