Just last week we brought you news of the next version of Motrola’s XOOM tablet and its smaller 8-inch brother nicknamed “Media Edition”. Now it appears that these two tablets, code-named “Pasteur” and “Fleming” respectively, have appeared in Verizon’s Cellebrite database. Both devices are expected to debut later this year.

Both versions of the XOOM 2 feature up-to-date 4G radios and a modified tapering corner design (the better to ward off Apple’s attack lawyers). Initially it was speculated that the tablets would be running Android Honeycomb 3.2, but with Google’s acquisition of Motorola Mobility in its early stages, they might be fast-tracked to Ice Cream Sandwich before their release. Each uses a 5MP rear and 2MP front camera. No screen information is currently known, but based on some tipped hands-on experience, a standard 1280 x 800 resolution panel seems likely in both.

These tablets are not to be confused with the 7-inch Motorola tablet spotted earlier. That device is speculated for a November release, with the new 10-inch XOOM following in December. Of course, the presence of these XOOMs in Verizon’s database merely means that someone, somewhere is testing out new hardware. As always with tipsters, these estimates are subject to change.