Did not know that, a wallet will still be having multiple addresses i guess so you need to create a real transaction just to send your own bitcoins within your wallet? This will cost you something no?
This is not new. That is how bitcoin has ALWAYS worked. Addresses are not going away, just the wallet's internal accounting system. A move command NEVER actually moved any bitcoins between any addresses. All it did was update the local information in the wallet about two of the internal accounts.