[merkitt]

Sinhalese, spoken only in Sri Lanka, naturally has some of these features: http://en.wikipedia.org/wiki/Sinhala_alphabet

1. Fully phonetic

2. Syllables are formed by a logical and consistent system of vowel signs that can be attached to consonant characters

3. Uses pure vowels and largely un-accentuated except for some minor stress on the first syllable of words

4. Alphabet order is logical -- a grid arranged by tongue position and nasalization

The biggest bad thing about the language: the formal grammar is very much latin-like, and equally difficult to master. Fortunately, the spoken version is largely grammar-less.

Source: I speak it.

[guard-of-terra]

There is a word for it: http://en.wikipedia.org/wiki/Abugida