Has the BlackBerry Playbook flopped?

RIM's BlackBerry PlayBook sales at one unnamed big box retailer have missed internal sales targets by more than 90%, and has a higher return rate than Motorola's Xoom, according to an unnamed source speaking to BGR.

According to the report, not only were sales targets missed by more than 90%, but the return rate exceeded that of the Motorola Xoom (which itself has a high reported return rate of 7%).

It looks like the lack of apps, no native email client, a recall, complaints of overheating and dead pixels, and monstrously strong opposition from the iPad haven't been good for RIM's and its foray into the tablet waters.

So far there have been no official sales figures released by RIM.

[UPDATE: This in from a RIM spokesperson:

The source of the reported comment is anonymous and unknown to RIM, but the comment is certainly inconsistent with the positive feedback we have received from our main retail partners. As previously indicated, RIM will provide a business update on BlackBerry PlayBook results on June 16.

There's an associated statement by Best Buy:

Best Buy has had great success selling BlackBerry smartphones in North America, so our sales expectations for the BlackBerry PlayBook were very high. To date, we have far exceeded those expectations and we're finding that customers are even more interested in purchasing once they've tested the PlayBook in the store.

So, strong denial that PlayBook sales have been weak, but no numbers.]