How different between Meridien G08 to 508.24?

I plan to upgrade the old 508.24, which I'm very satisfy for the sonic quality, to be new version G08. Has anyone here compared both of them and see any thing significantly different? Is it worth to invest on G08 or stay on with 508.24?

Appreciate your comment and suggestion.
Check out the review in this month's absolute sound. The reviewer claims the G08 to be a big leap above the 588.