While it does not seem like much at first it opens up a bevy of options previously unavailable at level 6.
For example, the Cloak Dance Feat from Expanded Psionics Handbook requires 10 Ranks in Hide; the Deft Strike feat from Complete Adventurer requires 10 ranks in Spot; the Graft Flesh feats from Libris Mortis requires 10 ranks in heal.
While 11 ranks isn't quite enough to open up the next set of skill tricks Skills Beyond Your Years in Conjunction with the Favored feat from Cityscape enables you to have 12 ranks in a given skill, opening up even more options.
Elven Spell Lore (players handbook 2) - Knowledge (Arcana) 12 Ranks
Echoing Spell (secrets of xen'drik)- Spellcraft 12 Ranks
Music of Growth (eberon campaign setting) - Perform 12 Ranks
Quicken Utterance (tome of magic) - Truespeak 12 Ranks
Fell Conspiracy [inviolate link option] (exemplars of evil) - Knowledge Religion 12 Ranks
This has inspired me to make a guide dedicated to finding niche feats and options that require 10-12 ranks. Look for it on Giant in the Playground.