I fully agree. The lack of Android Market Access is the major disadvantage of the AC100 (and mostlikely the main reason of its commercial let's call it niche existence). However, since the AC100 deviates a lot from googles requirements for the Market, not all can be blamed on Toshiba. Nevertheless, it would be up to Toshiba to renegotiate with Google, since now the Market allowes segmenting for apps it might be possible to cover an alien like the AC100 too. (I understand of course the developers too, who don't want to have handle issues with their apps, because they don't run well on devices the app wasn't ment for). My workaround is the use to limit my self to 2 alternate markets I download apps from, and run 2 Antivirus programm in addition. I doubt I doublecheck, e.g by downloading the app to my HTC Legend and compare e.g.the version numbers and the rights the app requests.
Not comfortable, but I assume to have system which covers my functional needs.

Ciritical apps, like the Webbrowser(Opera/Firefox) I update from the vendor site (via PC update), since browsing with an outdated version with wellknown security gaps, is nothing I would advice.

Toshiba, may I ask to provide at least an easy way of updating the browser and Flashplayer (Is it so difficult to put number of important and security sensitive apps (Browser, Flashplayer, pdf-Reader and perhaps also mail and Office) into the Toshiba Market with their latest versions (Opera is in the T.Market as 10.1 beta -11 something is the latest, Dolphin Browser is in there as 1.0 which is a 4.0, latest is 6.1)? Currently I have not found a way to get the latest Adobe flash player updates. For the Adobe reader I can download from the adobe site, but for the flash player it does not work that way.-((