The stations are already there, like here in Rue Bonaporte (Port area)...  
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...and here, on Boulevard Gambetta.  
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This is the Vélobleu station in Rue Préfecture (Vieux Nice).  
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This thing (in French, Italian and English) explains how the systems works. Click here for a  
very instructive page (in French). 
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And this map shows the places where you can hire a bike or drop it. Click here to see larger version of the map.  
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There are 90 stations all over Nice, and there will be 1.750 bikes available, 365 days a year, 24 hours a day.  
The weight of the bikes is 18 kilograms, 4 kilograms lighter than the Paris Vélib.  
You can pay with your credit card or with your mobile phone. You have to be older than 14 years.  
You can subscribe to the Vélobleu: for a year (€ 25,-), a month (€ 10,-), a week (€ 5,-), or a day (€ 1,-).  
If you only want to use it occasionally, the first 30 minutes are free, from 30 minutes to an hour it's € 1,-, and you pay € 2,- for every additional hour.  
Even if you are subscribed to Vélobleu, you have to return your bike to one of the stations within 24 hours.  
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The Vélobleu was received well by the public. Niçoise motorists are not exactly known for their patience, and some of them find it necessary to respond rather irritated to the new traffic participants (more obstacles that you have to avoid), but in general the introduction of the Vélobleu went smoothly. 
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A Vélobleu station in Rue de Foresta, in the Port.  
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Vélobleu station in Rue Catherine Ségurane, at the Collège Ségurane. People have to get used to the system, but there's always someone willing and able to explain it to you.  
 

A sympathetic gesture: maintenance also uses bicycles, or trikes actually, like here in Rue Catharine Ségurane.
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