As the SXSW Interactive Festival kicks off this week in Austin, PayPal will be on the ground showcasing its new set of developer tools and engaging attendees at the PayPal Exchange, where its Developer Lounge is located on the third floor of the Austin Convention Center. If you’re attending the show, please swing by! For those…

We’re coming to the end of Day 1 of PayPal X Innovate 09 so before I settle in for the afternoon keynote by Tim O’Reilly, I wanted to share the list of companies that today all announced new apps built with PayPal X. AERS, Carlson, FIS, FundRazr, MedPayOnline, Payvment, Playspan, ShopSavvy, Storenvy, Super Rewards, Sun…