Love it or hate it, a huge number of people are more familiar with PayPal than with any other online payment system. And so the Android Market may soon seem more much accessible to them, as a new rumor indicates Google is about to reach a payment-related agreement with eBay. That would represent a significant about-turn on Google's part. For a long time, the search giant did all it could to downplay the importance of PayPal and promote Google Checkout, linking to its service from Google.com and offering shoppers significant discounts.