i use tc on all my machines as a desktop distro, e.g.:
1. via tiny box (two years old) with 256 MB ram, 500 Mghz cpu, 8 watt consumption; booting either with cf-card (32MB) or with a usb-dongle (1.1 16MB), 3g wireless connection, laser printer (hp 3052); it is my main desktop;
2. AAO netbook (a 6 months old 110L) with same apps; i boot tc from the ssd drive of the AAO where tc lives together with ubuntu, but the extensions and my backup are on an external usb drive;
3. hp pavilion dv6000 laptop (2 y.o.); i boot tc from a usb dongle, and the extensions as well as my backup are on an external usb drive
4. ibm thinkpad X31 (5 y.o.); same as 3.
everything which I have to use in my day-to-day computing life works without a problem (office apps, web & terminal-server services, and extra services for the free time such as skype with webcam, attym, youtube, webradio, tv, etc.).
i was a fan of the modular approach of Robert who provides a new and an original way in computing (IMHO), and I found other small distro too heavy for my needs, and sometimes with apps which i have never used. Slitaz was the right step in the right direction. Tc is the achievement: small, current kernel, Robert's philosophy. It gives me what i am looking for for years now: a small core system with lots of useful apps that you can install or, better, mount at conveniance regarding your needs.
my current needs regard extensions which are not available at the moment, and which i'd like to see in the repositories (i prefer tcz ext. over tce ones because of the 'mount concept' which has my preference): unmount/uninstall tool for tcz apps, w3m, bc, bash history functionality, alpine mail client, mc, adduser functionality.