Wanderlust: Halflings love travel and maps. Halflings with this racial trait receive a +2 bonus on Knowledge (geography) and Survival checks. When casting spells or using abilities that provide or enhance movement, halflings treat their caster level as +1 higher than normal. This racial trait replaces the fearless and halfling luck racial traits.
The obvious application for this is the expeditious retreat spell, but how much else is it useful for? What are relevant abilities that provide movement?
I'm specifically thinking about spells that provide climb speeds, or the druid's abilities to change into forms that provide alternate movement options. Are both of these subject to benefit from this racial trait?
Re-Focus: Does a Druid's Wild Shape(SU) get a bonus from this trait? What about when Monks spend Ki points to enhance movement?
Even if the ability did effect the druid's SU ability, it wouldn't change anything. The spells that wildshape emulates only have one caster level dependent variable, duration. However, this duration is specifically overwritten by the wildshape ability. So, effectively, it doesn't matter if the trait works on the druid ability.
The only core monk ability that provides movement and is affected by CL is Abundant Step, which this +1 CL gives you an additional 40 feet of distance.
I didn't have time to look through all the alternate monk abilities, so there might be other, but the principle remains.