Looks like this will be coming back.
Doha tower project work to resume
Doha, 11-04-12
Lusail Real Estate Development Company (LREDC) has relaunched its Doha Convention Centre Tower project after a lapse of more than two years.
The company has invited prequalification bids for the 112-storey project. The last date to bid is December 11.
Work on the project was earlier halted following fears that it could disrupt the take off and landing of flights in Doha.
http://www.tradearabia.com/news/CONS_224972.html
I'm not buying the bit about the tower having been postponed about concerns from the airport.
Murphy/Jahn