eBay's PayPal is talks with Google to add the payment serrvice to Android phones.

Even if Android run phones users can use eBay's Pay Pal payment service to pay for app purchases, it has been reported that the payment service is in talks with Google to make it more integrated with the platform. A report out last week suggests that if the ongoing negotiations go as planned, Pay Pal should be available to Google's Android phones owners by year's end. Android apps purchases currently are made using a credit card or Google's own competitor to PayPal, Google Checkout. PayPal for mobile would work in a more integrated fashion on Android run phones similar to how the iTunes Store works on Apple's iOS devices.
Google's chief competition in smartphones, Apple, uses iTunes to handle payments for app purchases on its iPhone, iPod Touch, and iPad.
To broaden its sphere into the world of mobile payments, PayPal already introduced a new service for apps developers called Guest Payments in June that will let them accept credit card payments using PayPal without requiring buyers to have a PayPal account. With the service, Software developers offer credit card payments for applications, with PayPal electronically transferring the funds between buyer and seller.

For more, see CNET.com

Field Agent is an app that pays you to do different tasks.

Since the introduction of the iPhone, developers have rushed to come up with all kind of apps that cover the whole rainbow from the very useful to the very silly and useless. Some are free and will probably remain so for lack of a market willing to pay for it, and some cost a fee to download.
Now enters a new app called Field Agent that is free to download but even more, promess to pay you as you use it. Well, sorta, since the pay is not tied to the use of the app per say.
What the app does, is to pull some location based tasks that willing users can sign up to do and get paid for their efforts.
According to the New York Times, they are not even worth doing unless you find yourself in or near the location where the task in hand is to be performed. Generally the tasks consist of filing out a survey, checking the prices of certain products in a store, or taking the picture of products on store' shelves and the pay is around $2 in most cases.

For more, see NYTimes.com