Lack of ROMs available (Xperia ion)

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http://forum.xda-developers.com – i used to have the Xperia X1, X10 and the Xperia Arc and those phone has a lot of support from devs, lots of ROMs available. im planning to get the Xperia Ion to replace my Glaxy Nexus but lack of support and development is holding me back. why do you guys think that the ion doesnt receive support from devs like its smaller brother the Xperia S? is the ion worth it for replacement of my Gnex? (lots of support and backed by Google) (HowTos)