Hopefully by the middle of 2013 we will have:
+ encrypted wallets
+ HD wallets
This would be so great. I recently switched to Multibit for handling my wallet because last month Bitcoin-qt/Armory became too much for my laptop as the blockchain expanded. I still run full bitcoind on the home server to help the network, but the laptop travels a lot and the sync time was getting to be too much.
I love the Multibit interface with the MtGox values, keeping the last sent transaction details in the send tab, and the nice GTK+ theme. I miss my encrypted deterministic wallet though.