• I thought a good reform would use only the letters used in English currently, sans diacritics, in as recognizable and as regular a fashion as possible.
• I imagined that if a spelling reform were to take place, spelling would have to be destandardized, so that each region/dialect could spell the language the way they saw fit. In order to comply with this ideal, I tried to make a letter or letter combination for each phoneme that exists in the English's of the world, regardless of whether any one dialect would use them all.
• I was on a mission to destroy the letter "k".

Beyond that, the system above should be fairly self-explanatory. A couple more notes:

• Since there are some dialects that, for example, pronounce the words writer and rider differently, I've preserved a medial distinction between "t" and "d". The idea would be that any dialect could use whichever letter intervocalically that they wanted.
• Same story for "th" and "dh".
• A sticky issue that many trying to use the Roman alphabet with other languages have had to grapple with is the distinction between angma and angma+g. I resolved in the ugliest fashion possible, using "ng" and "ngg", but keeping "nc" rather than "ngc". Though the two sounds do contrast (e.g., "anger" vs. "hanger" [British pronunciation]), one solution might be to ignore the contrast, as is currently done, and spell both as "ng".
• An unresolved issue is the following: When you take stuff from a store when the owners aren't around, particularly because some emergency or other is occurring, you are looting. A new dietary supplement that many multi-vitamins now claim to have traces of is called lutein. In some dialects, these two words contrast only by one sound: A flap vs. an aspirated "t" (this is the dialect(s) where the "-ing" ending has come to be pronounced [-in]). I have no solution to this problem.