During Google's I/O developer conference Wednesday, the company announced that Gmail users can now send money via email using the updated Google Wallet. This upgraded version will also be available on Android, iOS and NOOK devices.

Google Wallet is no more restricted to just buying stuff online. According to a new announcement Wednesday at Google's I/O developer conference, the company said that users can now send money via email using the updated Google Wallet.

Only last week did Barnes & Noble announce the integration of Google Play on their NOOK devices. Their timing couldn't be more perfect. The updated Google Wallet application is also available across all Android, iOS and NOOK platforms. Users can now use their tablets to transfer money to others through their Gmail account.

"We are not pulling away from NFC," Peter Hazlehurst, director of product management for Google Wallet said in an interview. "We are simply making a much richer Wallet experience. There are still places where NFC can't be used. And not every device has it yet."

First, Google announced the new feature where users can send money to and from Google wallet via email. This allows users to easily make digital payments to others and it's not necessary that they have a Gmail account. Moreover, this service is free to send money if your bank account is linked to your Google Wallet or by using a Google Wallet prepaid account. Service fees apply for sending a money using a Google Wallet linked credit card or debit card.

Here's how it works. Click on a compose mail and hover your cursor around the attachment sections. Click on the dollar sign there to attack money to your mail. Type the amount and send it.

Google also announced another new feature for Google wallet which includes a new Instant Buy API for developers. According to a Google statement, this new API "will allow app developers and Web developers to use Google+ single-sign on technology to provide all the user and credit card information necessary when buying physical goods within an app or online."