Is it safe for children there? Should we ask the State Department before going?

Yes, Dubai is very child friendly. You can review the State Department website before traveling to any country. You will find that the UAE is rated extremely safe, like London or Paris or other places tourists go to.

What opportunities do you see there?
There are many opportunities in Dubai.  It depends on your goals and what you are looking for.  If you need a job and have skills, particularly in American business, that is valued in Dubai.  If you speak Arabic and English, that is valued as well.  If you are an entrepreneur there seems to be a huge amount of opportunity in this area.  Many new companies will be needed to fill a variety of needs: boat taxi companies, yacht brokerage and fractional ownership, cleaning services for all the offices being built, grocery stores, air conditioner repair contractors, legal services, consulting, IT and many other needs can be filled by the right entrepreneur.  It’s a fast changing market so it will take luck and skill to succeed.  Our focus is on the larger companies, publicly traded companies and the like. 
What is the oldest existing building in Dubai?

Al Fahidi Fort, built in 1799, is the oldest existing building in Dubai – now part of the Dubai Museum.

What type of food is available at Dubai restaurants?

Dubai restaurants & hotels offer a diverse range of food and beverage outlets.  Other than traditional Arabic cuisine, there is a wide choice of British, Chinese, Filipino, French, German, Greek, Indian, Italian, Japanese, Korean, Mediterranean, Portuguese, Russian, Spanish, Swiss and Thai. The traditional food of the Emirates has always been rice, fish and meat.

What kind of food do they eat there?

Every kind of food you can think of. I think the food is delicious and there are many fine restaurants. It is easy to find Middle Eastern food of course and there are many European and American restaurants. No matter what your tastes you can find what you want here. There are Applebee's, TGI Fridays even Johnny Rockets if you have very American tastes. Personally I liked the local food best because it is different than what we eat in the US I also think the Indian food was great. Basically all the food was excellent.

Is it expensive there?

It's about the cost of a moderate to large US city, say Boston or Columbus Georgia but with the option to go to ultra luxury restaurants and hotels that one could only find in NYC or LA.  Dubai is cheaper than NYC, London or LA for the most part but its costs have gone up over recent years.  If it levels out somewhere around other major cities it will still be very worthwhile to go to.

Certain things, like labor, drivers etc are cheaper in Dubai, as are cars for some reason.

How can there be a nightlife and night clubs if drinking isn't allowed? Is smoking allowed?

I am not a drinker myself but if you are there is no problem in going to clubs and bars with alcohol. Theses are typically located in hotels and there is a variety of places based on your preferences and budget. You can also obtain a license for alcohol in your home. Again, I didn't drink at all while there and wouldn't miss it but if you want to drink like a European pub owner you won't have a hard time finding it. Smoking is allowed.

Is Dubai part of Saudi Arabia?

No, Dubai is not part of Saudi Arabia.  Saudi is a neighboring country to the UAE.  The UAE is its own country, a sovereign nation.

What language do they speak there?

Arabic and English primarily. There are many languages in Dubai, including Urdu and just about any other you can think of. You can get by just fine on either Arabic or English.

What is the local currency in UAE?

Arab Emirates Dirhams (AED or Dhs 1 = 17 INR)