Opened ended vacations are gaining ground, as more and more companies have started offering them, to their employees. High tech professional companies and white collared employers are more into it.
Employees do not get any fixed time or official limit for vacations. They only need to get prior approval and to see to it that work does not get hampered during their absence.
By "unfixing" vacations employers are liberating themselves from orthodox procedures into more liberal and employee friendly terms and removing old fashioned constraints in the process.
According to Steve Swasey, spokesperson of Netflix Inc., the culture at Netflix being open ended, open ended vacations fit in well, as focus is on the what work is done, rather than on the number of hours worked. People also keep in touch through the net and the phone, to sort out major issues, during vacations.