Resurrecting this thread, are there any updated options for a travel pump, not something to carry on the bike, but something to inflate tires while doing multi day touring away from home? Ease of fitting in a suitcase, reasonably light weight, not over tiring to inflate a tire, andpreferably has a gauge are features I would want in this type of pump.

The Topeak Road Morph and the Lezyne Micro Floor Pump both look like options as well as the Topeak Transformer RX. I'm not ready to try the Silca Viaggio. I usually use Co2 on the road, it has worked fine for me most of the time. Something like the Zefal HPX might do dual duty as on-the-bike and top off/fill up pump, but somehow I just can warm to how these pumps attach, I prefer something with a hose like the Lezyne Micro Floor pump.

Anything else to consider?