Splitting WordPress theme CSS into multiple files, good or bad?

From http://headjs.com/ :

There is a common misbelief that a single combined script performs best. Wrong:

  • latest browsers and Head JS can load scripts in parallel. loading 3 parts in parallel instead of as a single chunk is usually faster.
  • iPhone 3.x cannot cache files larger than 15kb and in iPhone 4 the limit is 25kb. And this is the size before gzipping. if you care about iPhones you should respect these limits

(i dont know if it means .css and .js or only .js)

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