A metro line is being constructed in Santo Domingo and it's expected to be fully operational in Feb 2008 but will be formally open to the masses in Apr 2008. The route consists of 16 stations for a length of 14,5km.
Edit Apr 2009: alright, so we took the metro. The wagons reminded me of the Madrid metro and it's not so weird considering that they financed the project :) The stations are very clean and safe and patrolled by law enforcement people and the process of buying the ticket is very efficient. The ticket is actually a card that everyone must buy and it costs 30 pesos (a little less than 1 US), then every single trip costs 20 pesos. You place the card on top of the turnstile and pass.
We did the trip for the whole line once and then got off at the station closest to where I can go home. Total price? 70 pesos.
The stations don't have names according to the streets close to it, but of people that are/were important to the Dominican history but under the name you'll see which street or "landmark" it's close to.
The one tourist attraction that this metro line passes by is Teatro Nacional (National Theater) and the station to get there is called Casandra Damirón.
Edit Oct 2009: they have started the construction of line 2, which will go from Los Alcarrizos to El Almirante (and close to my house).