Remember SideStep? With all the focus on Kayak with its TV ads, possible IPO and the intermediary saga, many would be forgiven for forgetting about the rival metasearch engine it bought.
Well, for all the talk about mobile and other developments at the mothership, Kayak appears to be throwing some energy into its acquisition from 2006.
The Connecticut, USA-based company says it is considering an iPhone app for Sidestep as a way to keep tools and services across both brands developing along similar patterns.
Kayak says it intends to continue marketing the SideStep brand - presumably almost exclusively through keyword-buying, rather than TV campaigns - and overall it is happy with search volume on the site.
Chief marketing officer Robery Birge says:
"The SideStep brand has had a loyal user base for some time, and our intention is to continue serving them."
When Kayak bought SideStep in 2006 for a rumoured $160 million - although some still ponder whether this was an exaggerated figure - industry watchers questioned whether SideStep would eventually be folded into Kayak.
The SideStep UK site, which was the subject of a tricky and long-running legal wrangle to get hold of the .co.uk domain, was closed almost immediately after the acquisition amid a similarly slow-burning attempt as Kayak to gain significant traction.
In the US, however, SideStep commands a healthy dose of monthly traffic (about 1.4 million uniques, around a quarter of what the sister brand gets, according to Compete).