Intent of Offer Vs Offer

Hi EveryOne,
Greetings of the Day!
As per my perception "Intent of Offer" differs from actual "offer". Basically intent would refer to a very firm resolve or willingness to do something (but not necessary that it will be done). By inetent of offer the organization is not legally bound to stick to the offer. Intent of offer gives a chance of negotiation or bargaining power on the part of the prospective employer which they can turn down later on if things donot turn right between the employee and employer . Some times external factor do play a role in turning down the offer made. We can very well take the example of then Satyam and now mahindra satyam. Satyam had given intent of offer to thousands of pre final year students but the offer was never made.
HR had promised Sky is the limit for the prospective employee but the reality was not juicy enough. This is ethically wrong but this happens in industry and is a reality.
On the other hand offer is something that the company is willing to give and the offerer is also bound to give it."Offer letter" legally binds the organization to recruit the person.