Let's say [as a concrete example] you're going to open a hairdresser. You need to sit down and work out your fixed start up costs (shopfitting, deposits, licenses), your monthly outgoings (electricity, rent), and what you can expect in income. You need to know the location, the foot-fall, the number of employees, and add in contingencies.
All of that is going to take you a day or so to work out.
This is not a "Business Plan"(TM) with exponentially increasing graphs and 5 year projections, but it's a sound concrete Plan for a Business which lets you know if it's worthwhile starting off.
This is not a high tech Hacker News example, but much of the same fundamentals apply for any business or project.
I doubt it. Calling a hairdresser a Startup, is about as convincing as saying Detroit innovates in transport with efficient engine technology.
The key difference, despite its past, Detroit can create new innovative hi-tech products if requried. [0] I dare say it would be harder for hairdressers around the world to do so in a business that is not technology based.
[0] Sebastian Blanco, "Detroit 2011: Li-Ion motors says hello to first Wave sales, promises Inizio by mid-summer" http://green.autoblog.com/2011/01/11/li-ion-motors-wave-sale...
However, with your hairdresser example you can get started and JFDI by working freelance at another salon or doing home visits.
It's interesting that Startup Britain had real entrepreneurs help. I'm interested to know how much though, did they actually propose the plan of what is being done or just had their names associated with it?
I guess i'm a little biased as I've ran startups and obtained the information they try to put across from better sources and what they offer for saving money means nothing for a tech startup perhaps others might find it useful. But things like Appsumo's recent lean startup bundle really showed how to save money or things like Amazon's free tier EC2 hosting.
The only thing that looks interesting to me would perhaps be the mentoring marketplace and the pledge matchmaker if they can make it work. Some of the other new features are already being done, why create yet another place to do this. 'best of web' just to go to delicious and search for the tag startups 'A calendar of enterprise related events' ha, upcoming? meetup? Lanyrd?