Although, there are various DDP clients for other languages as you can see here: http://meteorpedia.com/read/DDP_Clients
There have been some discussions with Asana (asana.com) teams who are building their new data store with a DDP API published for their clients.
Although, there are various DDP clients for other languages as you can see here: http://meteorpedia.com/read/DDP_Clients