Careful what comparisons you make because the widely available Atrix with the Tegra 2 is pushing a higher resolution plus interpolation to compensate for the pentile matrix. You really have to look at the Optimus 2X benchmarks for comparison. As for the Snapdragon, the t-bolt is using the 2nd gen version which indeed is higher performance based on an optimized design, smaller scale manufacturing process for lower power consumption, and an updated GPU. It benchmarks 60-70% faster than gen 1. It's not 2010 silicon.
For your reference:
2nd generation
MSM7x30, MSM8x55 and QSD8x50A - all 3 variations share the same design, differs only by the clock speeds. These 3 variations run at 800MHz, 1.0GHz and 1.3GHz respectively. Each of these features Adreno 205 GPU which runs at significantly higher performance level than Adreno 200 found in the 1st generation Snapdragon processor.
I'm not arguing for necessity of dual core, but I would expect a device at this point to feature 2011 hardware, especially with Nvidia, TI, and Qualcomm sporting dual core or update single core devices. Android will be updated to support dual core architectures and with it will come adavanced features from Honeycomb. Without an updated CPU, and for a company with an already poor record, you can all but guarantee that software support for the Stealth will pretty much be DOA.
Not interested in the Bionic. Pentile matrix is a deal breaker, even at qHD resolutions. Verizon appears to be hanging their hat on LTE and not so worried about hardware specs/features.