The upgrade process was fairly simple. I already had a rooted G1 with 18.104.22.168i radio. All I had to do was install the Danger SPL and the ROMs. check cyanogenmods wiki for more instructions.
My review of the new ROM is as follows
Supports ad hoc networking without having to edit tiwlan and wpa_supplicant
Does not connect to adhoc network automatically
Serious lag issues (could it be my phone only, lmk)
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