ICS finally available!

6.1.1.B.1.10

ST25i

http://forum.xda-developers.com/showthread.php?t=1918920

ST25a

http://forum.xda-developers.com/showthread.php?t=1916419

Difference between the i and a version are the basebands

(radio frequencies for call/data connections)

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6.1.1.B.1.54

http://forum.xda-developers.com/showthread.php?t=2028139

ST25i

SOON

ST25a

SOON

ST25i (international)

UMTS HSPA 900 (Band VIII), 2100 (Band I)

GSM GPRS/EDGE 850, 900, 1800, 1900

ST25a (america's)

UMTS HSPA 850 (Band V), 1900 (Band II), 2100 (Band I)

GSM GPRS/EDGE 850, 900, 1800, 1900