I don't disagree with you on some points. What I stated was that no employer in the UK would ever think of drawing up a contract that did not state the minimum wage on it. Anything else would be unlawful.
The National Minimum Wage
If you are a worker or employee, you will normally be entitled to the national minimum wage. Your employer may pay you by the amount of work you do, rather than by the hour ('piece work'). In that case you're entitled to the minimum wage rate either for all the hours you work or, if the 'fair piece rate' system is in operation, for 120 per cent of the hours that the average worker working for your employer would take to do the work you do. The effect of the system is that all except workers who are much slower than average earn at least the minimum wage rate for the hours they actually put in.
Think that paragraph from:
direct.gov.uk/en/Employment/Employees/EmploymentContractsAndConditions/DG_10027910
sums it all up really. However, it is still an interesting and debatable case. As I said before will be interesting to see the judgement !
:)