It says on
https://en.bitcoin.it/wiki/Accounts_explainedthat
"Moves are not broadcast to the network, and never incur transaction fees; they just adjust account balances in the wallet."
1. Since btc addresses are assigned to accounts, do they get automatically reassigned to a receiving account during a 'move' when enough bitcoins of a given address are moved to that account?
2. Suppose I have one account per btc address, and move some coins from acc1 to acc2 but not all the balance, does that transaccion gets ever reflected in the public bitcoin network block chain? When? At the moment I do a sendfrom to an external btc address?
Thanks.