Source: Asymco

Asymco‘s Horace Dediu, whose spreadsheets of mobile phone data are a seemingly endless source of colorful and informative charts, has produced this one to commemorate Apple’s AAPL ascension into the top tier of mobile phone — not just smartphone — manufacturers (see The iPhone is No. 4).

What strikes me in the chart above is how large Nokia’s NOK lead still is, how far Motorola MOT has fallen and how much room Apple has to grow.

To see Dediu’s chart of mobile phone market share over time, click here.

[Follow Philip Elmer-DeWitt on Twitter @philiped]