but how would you type in the track tags?

Well, the HSX-109 has a copy of the CDDB built in. But yes, for those discs that aren't in the CDDB I agree that typing in the track tags would be a pain without a keyboard. This is the same problem with the Sony and Pioneer units that were shown at CES this year. If I recall correctly, one of them doesn't even have tagging.

Oh, by the way, the HSX has USB connectors that will accept a USB keyboard for tagging... This was all discussed recently over on that BBS, so the issue isn't worth hashing over here.