I've read through Brewin's book, Infinite Universe, and submitted feedback - it's very good, featuring a deep yet tongue-in-cheek plot with lots of sci-fi, film and gaming references, and weighs in at a whopping 900+ sections. My understanding is that it will be broken up and released as a series of instalments though.
It took over a year to write, and the effort shows. Definitely worth picking up whenever it does come out - and don't worry, that's simply an objective recommendation from someone who's read a few gamebooks. I don't get any cut of the proceeds (though I have been promised a credit).
It's due sometime in February. Tinman have also pledged to support Android, so expect it to show up on there at some point.
Equipment gives you offence and defence values, which are the number of six-sided dice you get to roll.
So if you're unarmed and unarmoured you'll get 1 die in offence and defence, but if you get a sword or something you might get to roll 3 dice in offence. If you then get, say, leather armour you might then get to roll 3 dice in defence too.
Attacker rolls all their dice, and the defender must beat the highest single die or take the total roll as damage, which makes combat rather deadly as you'll have less than 50 Vitality points.
You also have Fitness points which can be spent for combat bonuses, but you need these to pass frequent non-combat checks too (bit like LUCK in Fighting Fantasy).
The player has one big advantage: If you shake your iDevice before all the dice settle you can reroll all the dice in a single roll, but it only works once per roll. Sounds like it might make things too easy, but trust me - the books are difficult enough.
One nice touch - each combat has a unique death section, so if you lose you'll get to read about being eaten by gribblies.