Re. "[tablets] are limited to FB style games so come on lets get real"
Real Racing 2 HD on an iPad 2
Real Racing 2 HD on an iPad 2, connected via HDMI to an HDTV
Infinity Blade on an iPad 2
Dead Space HD on an iPad 2
Rage HD on the iPad 2
These all also work on the iPhone (except for Real Racing, which has a separate iPhone-specific version rather than act as a "universal app").
Other tablets/phones... I'm not an Android user, so I don't know what the games are like for that OS, however the high-end Android tablets (e.g. Xoom, Galaxy Tab 10.1) and phones (e.g. Galaxy S II) have very good tech specs* so should be able to perform similarly.
* For those who like specs: The Xoom and the Tab 10.1 use the Tegra 2 SoC, which has the same ARM Cortex-A9 dual-core CPU as the iPad 2's A5 SoC. Although the Tegra 2's GeForce ULP GPU is not as powerful as the A5's PowerVR SFX543MP2 dual-core GPU, the Xoom and the Tab 10.1 do at least have 1GB of RAM instead of 512MB like the iPad 2. The Galaxy S II uses Samsung's Exynos 4210 SoC, which has an ARM Cortex-A9 dual-core CPU and an ARM Mali-400 MP GPU. All these devices easily outperform the PSP, and I believe also the 3DS. The next Sony handheld, the PlayStation Vita, is going to use quad-core versions of the ARM Cortex-A9 CPU and PowerVRSGX543 GPU... but will raw power be enough for Sony to succeed? The mobile/handheld gaming market is already changing...