Bah! This is the sort of thing I expect to happen in London, not Hong Kong - and I've been bitten by it twice now, so it's I'm annoyed with myself.
In a couple of places in Hong Kong, there are two train stations in pretty much the same place, but with different names, and, crucially, the same sequence of exits, (A, B, C, etc.) but in different places. I got caught by it a few months ago when I planned to meet someone at what I consider to be Central station - the one below the IFC - and we ended up playing phone tag for a while since he was at exit A of Central Station and I was at exit A of Hong Kong Station. And I messed up again this morning, when I went to find the Palm drop-off place (actually a DHL office) which is at exit F of Central Station - which is, of course, at the very opposite end of that transport hub from exit F of Hong Kong Station. I won't make that mistake again - at least, until the next time.
On the other hand, I do have a replacement Treo 650, which seems to be in better condition than the one I turned in, although the new one is reconditioned, and which will hopefully managed to run for a few hours (maybe even days!) without freezing up and needing a poke of the reset switch...