You will find an interview with Nick Bitel I believe on BBC Radio 4 You and Yours a few weeks back on exactly this issue
As for viagogo being taken to court, the RFU has taken them to court successfully recently and defeated their appeals against the courts decision
As did Dispatches when viagogo tried to prevent their programme airing
I hope that assists
Aristeia are authorised resellers for Olympic tickets, they are "collaborating' with viagogo, its not a partnership, which is why they are studiously avoiding the word "partnership"
In the same BBC Radio 4 interview on You and Yours I believe one of viagogos directors admitted they are not authorised to sell Olympic tickets but I would check the podcast for that titbit
We are also led to believe that they gave their word to Operation Podium at the Metropolitan Police that they would not get involved in Olympic tickets, assurances that proved worthless
Viagogo are not authorised to resell Olympic tickets, ask LOCOG if they are I would suggest
On paper it appears they are simply providing a website for Aristeia
Funny how Aristeia, after years of trading, suddenly seems to need viagogo to provide a website for them isn't it?
What is also coincidental is that they have liquidated viagogo ltd in the UK, fled to switzerland at exactly the same time as several statutory agencies are looking into them