Seemed to get past initial splash screen faster compared to 1.0 & 1.0.1. That's all I've done so far.
I only noticed it because I saw the release notes posted in the International forum.
Still no '1284P boards tho ...
ARDUINO 1.0.2 - 2012.11.05
[hardware]
* Added support for the Arduino Micro.
* Added support for the LilyPad Arduino USB.
* For Arduino Mega, having avrdude use "wiring" not "stk500v2" for
uploads (to improve auto-reset behavior).
http://code.google.com/p/arduino/issues/detail?id=806
[environment]
* Find-In-Reference now works whether or not text is selected.
http://code.google.com/p/arduino/issues/detail?id=940
* Not generating prototypes for functions that already have them.
(Lars J. Nielsen).
http://code.google.com/p/arduino/issues/detail?id=973
* Improved line numbers for error messages. (Paul Stoffregen)
http://code.google.com/p/arduino/issues/detail?id=907
* Automatically create libraries folder in the sketchbook.
(Paul Stoffregen)
http://code.google.com/p/arduino/issues/detail?id=986
* Tutorial on installing libraries (linked from readme.txt in the
libraries folder). (Limor Fried)
* Fix to allow selection of Norwegian. (Rune Fauske)
* Fix to race condition / occasional error in compilation. (gandrewstone)
http://code.google.com/p/arduino/issues/detail?id=950
* Don't break long C++ comments during auto-format.
http://code.google.com/p/arduino/issues/detail?id=255
[core / libraries]
* Included WiFi library and wifi shield firmware.
* Added ability to specify serial configuration (data bits, stop bits
and parity check) in Serial.begin(). (Alarus)
http://code.google.com/p/arduino/issues/detail?id=770
* Avoided overruns of the incoming serial (CDC) buffer on the Leonardo.
(Peter Van Hoyweghen)
* Avoided auto-reset of the Leonardo when opening serial port after
upload without specifying a baud rate. (Peter Van Hoyweghen)
* Fix for tone() on the Leonardo. (Shigeru Kanemoto)
http://code.google.com/p/arduino/issues/detail?id=960
* Fix for SD library on Leonardo.
http://code.google.com/p/arduino/issues/detail?id=931
* Added other write functions on Leonardo.
http://code.google.com/p/arduino/issues/detail?id=958
* Added support for Leonardo interrupts 2 and 3. (Kristian Lauszus)
* Print ovf, inf, or nan accordingly in Serial.print(). (Nick Gammon)
http://code.google.com/p/arduino/issues/detail?id=946
http://code.google.com/p/arduino/issues/detail?id=961
http://code.google.com/p/arduino/issues/detail?id=967
* Fix initialization of SPI data lines. (gandrewstone)
http://code.google.com/p/arduino/issues/detail?id=888
* Serial.flush() waits for last byte to transmit. (michele.mazzucchi)
http://code.google.com/p/arduino/issues/detail?id=871
* Adding overloads so Serial.write(0) works.
http://code.google.com/p/arduino/issues/detail?id=1006
[build]
* Fix Linux arduino script when there are spaces in directory name.
* Pass Linux command line arguments from arduino script through to the
Java code. (Allows specifying sketch to open on command line.)
[examples]
* Included examples for the starter kit.