Besides lending his name to endorsing the Foreman grill, Jackie Chan, as usual, is busy plugging a variety of things. Tomorrow the tireless promoter is showing up to open the Global Sources' China Sourcing Fair for electronics and components. It's not the most sexy of events but, then again, Chan (below) isn't just there as celebrity pitchman. It seems he is there as founder of Segway SAR, the Hong Kong agent for the two-wheeled personal transport devices that move in the direction you lean. Staff will be using them to get around, as Segway is the official event mobility partner of the China Sourcing Fairs. Outside Kong Kong, Chan has also accepted an ambassadorship from the city of Yantai , Shandong province , where Chan's father was born. Then again, all this non-film-related activity might just be a distraction from the commotion caused by stuntman Bruce Law's blog, which claimed he doubled for Chan in several movies. It's not the kind of publicity Jackie wants.