GOOG Google: UBS previews quarter (310.65 ) -Update- UBS comments that while there is often a healthy dose of uncertainty surrounding Google's earnings, firm thinks various issues around 3Q05 make it one of the most difficult to call yet. The bottom line is that firm expects Google to post modest upside to firm's and consensus revenue and EPS ests. However, in comparison to upside surprises of previous qtrs, UBS thinks seasonality will limit this quarter's upside.