HTC may have faced a rare rebuff from Google that would stall its tablet efforts, a JPMorgan analyst said today. Google is said to be focusing most of its attention on Motorola's tablet as a halo device for Android 3.0 and LG's Optimus Pad for Honeycomb (tentatively 3.5), pushing the internal readiness of HTC's own design from December to sometime in spring 2011. The note, picked up by Taiwan's Apple Daily, didn't explain why Google would risk delaying HTC's device.