I really enjoyed Jon Ingold's "The Colder Light" but as with other reviewers I found that the no-keyboard approach is somewhat restrictive and tedious. The story in itself is rather good and accommodates different endings as would befit a well written story. The puzzles are somewhat similar - (Spoiler - click to show)most involve you gazing at the sky, see what constellations are above you and then choosing the appropriate set of runes to summon the deity.. Of course this is easier said than done - getting a rune placed wrong involves some mouse clicks and the respective lag.
But apart from this, which might be a welcome thing for handheld parsers, I enjoyed the game very much. A solid 3,5 stars - which would be 4 if you could use the regular keyboard interpreters.