According to the changelog posted for the latest update to Google Wallet, the service now supports automatic transfers for when money is received. Do note, while the app states the feature is inside, it is reported that it won’t go live until next week.
As an example for how this could be useful, if your friend sends you $20 to pay for half of the dinner you just split, that money will no longer sit inside of your Wallet account until you take action on it. With the update, that money will automatically be sent to either your bank account or debit card, depending on which option you prefer.
In addition to automatic transfers, Google states that there are numerous bug fixes and visual improvements inside of the app.