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Here is a good miui rom http://androidforums.com/triumph-all-things-root/557735-rom-port-miui-2-4-20-triumph-updated-07-27-2012-gb-2-3-7-based.html
and here is a better cm7 rom that is currently being developed http://androidforums.com/triumph-all-things-root/590069-rom-hold-mtdev-cm7-build-20120810-a.html
and here is a better cm7 rom that is currently being developed http://androidforums.com/triumph-all-things-root/590069-rom-hold-mtdev-cm7-build-20120810-a.html