When it comes to Android tablets, Toshiba hasn't really been the "brand to buy," so to speak. It's not that they put out bad hardware, because that's simply not the case - the Excite 7.7 is one of the best Android tablets I've ever used. It's that they don't promote - or more importantly, support - devices after release.
Case in point: today, the company has announced a new member to its Excite line, the 10" Excite SE. This makes the third 10" tablet in its Excite line, with the Excite 10 and Excite 10 LE coming before. While the latter of those is powered by a dual-core Qualcomm chip, the former is using the quad-core Tegra 3.