Mobile deals will play an important role for PayPal next year as it continues to build a multifaceted retail technology solution to help retailers address the pain points in their businesses.

Mobile will play a big role for eBay as it migrates to an open ecommerce ecosystem that will enable developers to create new services and apps that enhance online and mobile shopping.

While PayPal provided some more color around its push into mobile payments last week, a lot of details are still missing, such as how it will enable in-store payments.

EBay said mobile is accelerating thanks in part to PayPal’s growth, with the division posting its first billion-dollar revenue quarter.

With daily deals applications and mobile sites rapidly increasing, retailers and merchants are continously looking to target consumers whenever and wherever they are with offers. However, how much is too much?

SAN FRANCISCO – Retailers creating a mobile-optimized application or site should make sure that the check-out process has a minimal number of clicks to better accommodate consumers, per panelists at the Mobile Shopping Summit.

Retail giant Best Buy is placing an iPhone application at the center of its national Buy Back campaign that is intended to convince consumers to upgrade to latest and greatest consumer electronics products.

Apple is reportedly prohibiting application developers such as Sony from selling content via iPhone and iPad applications unless the transactions go through Apple’s system.

In the United States, purchases attributed to mobile online shopping—excluding travel—grew from $396.3 million in 2008 to an impressive $1.4 billion in 2009 and mobile commerce has continued its explosive growth this year.

Kenneth Cole is placing a new iPhone application at the center of its “Be Careful What You Wish For” holiday campaign, featuring the brand’s first digital wish list.