my add in
5) supports up to 64GB SDXC (not SDHC)
6) Wolfson audio chip (with possible future Voodoo sound update)
not a delight until testing is done on actual unit
7) better GPS with GLONASS
not a delight until testing is done on actual unit
8) dual-band 128-bit GPU performance
not a delight until testing is done on actual unit
9) Gorrila Glass 2
10) better power management embedded (not sure yet with real life usage, arguable)
not a delight until testing is done on actual unit
11) better processor with new tech
not a delight until testing is done on actual unit
12) better radio chip + voice equalizer for more clarity during calls
not a delight until testing is done on actual unit
13) better camera sensor (but need real life test shots examples to judge it)
not a delight until testing is done on actual unit
14) better Full HD video recording at 17Mbps sampling
15) more sensors than other phones