Competition is always good, so long as it does kill SawStop. Other manufacturers of tablesaws will probably follow behind Bosch just to avoid lawsuits. This may also lead to elimination of the sale of cheap tablesaws (sub $200) that are dangerous no matter how you use them. I have the SawStop Professional saw, which I bought immediately after seeing one at a trade show. It replaced a Delta Cabinet saw. I wanted the extra safety and build quality of the SawStop was equal to that of the Delta.
I also have the Bosch 4100 and a smaller DeWalt. Both are nice saws with the Dewalt having a exceptionally nice geared fence. The 4100 is nice to, but the build quality pales in comparison to any of the SawStop models.
The odd thing about Bosch is that they make a lot of great tools (along with a gazillion other items) and coordinating accessories (not a system like Festool has though). Lots of them don't make it to the US. With their bankroll they could cut into Festools market in short order, but they will be up against price point issues. They can't get Festool prices while slumming it at Lowe's and Home Depot with cheap tools. Festool is like Apple...they won't sell cheap stuff because there is no margin on it and once you target the bottom there is no way out. Best approach might be a new tool line that would be premium.