hi i bought a i pad 1 for work to help with showing customers what i do and to generally fit products i like to fit and to speed up the process of that so far the apps i have loaded are

invoice2go lite (free and excellent)
neu. annotae PDF  (free and good)
sketch book express (free not bad)
nav free (free and good)
citrix (free and complicated but think it will become essential eventually)
sight space (11GBP cant work the thing, )
Cubits (3GBP cant work it either)

is their any other apps that are good for these types of things , also i want to make PDFs to email to potential customer like different layout of wardrobes and what might suit them and kitchen choices, so what have fogers been doing like this.

I use the invoice2go app, show customer pics (if they have an idea or I have one, pics help them understand) and have made a few orders on it along with checking/replying to emails. Luv the iPad 2.