Citing issues with the user experience, O2 UK announced on Thursday that it “will not be selling” the BlackBerry PlayBook. The wireless carrier began notifying customers who had signed up for more information about its change of heart on Thursday. The carrier officially stated: “unfortunately there are some issues with the end to end customer experience,” but didn’t delve further into its reasons for the decision. We suspect it could be the lack of a native email client, an addition that RIM has said it will add in a future update, but we also noted that it felt like an “unfinished product” in our recent review. O2 did say that it could offer the product at a later date, and that it will work with Research In Motion on its BlackBerry PlayBook products in the future.