I wish my TR1 had BT built in, I really enjoy the simple connectivity. Ill give you some scenarios. Keep in mind that (in my opinion) the real joy comes in having a series of BT devices that interconnect with one another. Just having a laptop by itself is, as you say, pretty much useless.
I use my TR1 as my “baseline” contacts station for Office to keep all my client contacts up to date. With the T610 (via the Sony Bt dongle), I conntect via bluetooth and the XTND Connect software that came with the T610 to port over all my contacts to the phone. This includes not only phones for home, work, cell and fax, but also email addresses. This saves me loads of punching in time and keeps all the contacts on the same level.
Also, when I dont have my digital camera, I can snap a photo and send it over to the computer and free up the phones memory.
I have T Mobile and I subscribe to the $20/mo internet access thingy. I use my T610 to connect (56k) via BT to the TR1. Although not the fastest connection, its a real joy in a pinch.
In other BT realms, I use the SE HBH-60 BT Earpiece with the T610. After fumbliing with driving with cell phones, then corded earpieces and the like… I think BT earpieces are the safest thing going.
I used to have the Sony CLIE TEG-50? that had BT but no wireless or SD/CF slot so I sold it.
I am waiting for the next gen phone/pda/camera with WiFi/BT/CF/SD/MS with GPS, blah blah blah…...
The closest thing today is that new P900 but im sure its $$$$$.