with bitcoins I could start saving in another currency or maybe (buying/selling) other currency than the bolivar...
because as the passage of time bolivar´s value decreases
...
With derivative exchanges where you transact in BTC you could easily create a basket of assets as a hedge against inflation and confiscation. As far as I heard current futures exchanges are not very evolved or tested yet but this could change the landscape by making it very cheap to take the position you want for your savings, USD, stock indices, metals, etc.
One example is https://en.bitcoin.it/wiki/MPEx
Others https://en.bitcoin.it/wiki/Category:Futures_Exchanges