From
Yahoo News
While the most popular mobile advertising mechanisms so far are banner or text ads in mobile Web pages, some startups are pushing technology that essentially delivers a pop-up advertisement to mobile phones. The ads appear not when customers are using a browser, but they can pop up on the phone's idle screen any time.
However, the mobile co's have clearly taken note about how universally loved popups were on the fixed Internet...
Forming those close partnerships with operators could present a problem, because some industry experts say that the major operators aren't interested in the pop-up type of mobile advertising.
Pushing popups on contract owning customers will probably be a major no-no, so we expect this will be competing for the PAYG attentionspace.