I bought it, I can manage 3.5 euro even as a student so no biggie. I'm going to the gym soon so I wont be home for a couple of hours, so if you want to know anything let me know, otherwise this is what is says about the actual formation:
BATTLESCROLLS
Battlescrolls allow you to add unique battlefield formations to your games of
Warhammer. Each Battlescroll lists the units that make up the formation, and the special
rules that apply to them in order to represent the fighting qualities that they possess. The
following rules describe how you can use Battlescrolls in your games of Warhammer.
BATTLESCROLL FORMATIONS
When you choose an army, you can take one or more Battlescroll formations as part of
your army. The Battlescroll will tell you what units you need to take in order to field the
formation, and what, if any, extra options or restrictions apply to the units that make it
up. The army list entries for each unit in the formation (the units’ profiles, points values,
unit size, options, special rules, battlefield role etc.) can be found in the army book for the
unit in question.
FORMATION SPECIAL RULES
Each formation includes one or more special rules associated with the units that make up
that formation. The special rules for a formation only apply to the units that make it up
(even if there are other units of the same type in your army).
ALLIED FORMATIONS
Formations do not have to be chosen from the same army book as the rest of your army.
If you decide to do this, then formations made up of units from different army books
follow the rules for Allied Armies on pages 136-139 of the Warhammer rulebook.
FORMATION POINTS VALUES
Formations do not usually include a points value; just add up the points value of the
individual units and options to find out the total points value of the formation.
Occasionally a formation will require that you pay extra points in order to use it. In this
case, the cost of the formation is the total cost of the units plus any extra points the
Battlescroll specifies you have to pay.
The points value of the units in the formation count against the total points allowed for
your army, but are not included when working out the percentage of points spent on
different categories of unit. For example, a formation with 500 points worth of models
would count as 500 points towards the total number of points allowed for your army, but
would not count towards the number of points spent on lords, heroes, core units, special
units or rare units in your army.
If you wish, you can field an army made up exclusively of formations chosen from
Battlescrolls. If you choose to do this, then you do not have to spend 25% of the points for
your army on core units, and you do not have to select a model as the General if the
formations that you use do not include any character models.
I DO NOT WANT TO COPY/PASTE ENTIRE RULES WITH THE EXCEPTION OF HOW TO ACTUALLY FIELD THE FORMATIONS.
These are just common rules about how to field this/any formations because ultimately IMO anyone should be allowed to know how this works so they can figure out whether or not it's worth it for them. However, I don't think it's fair to just copy/paste the entire thing including the lore. As I said though, I'll obviously answer any questions should there be any.
**EDIT**
This can be bought and downloaded on the PC followed by converting it to PDF so anyone can buy it. It's not something only for Ipad users or what some people might think, so everyone who's interested should be able to get it..