For anyone contemplating the move, here are some of the pros and cons I have found after 2 weeks of use of the I300 and about a year's worth of use of the Prism/Minstrel.

Pros for Prism/Minstrel:
- SUPERIOR screen quality compared to I300
- Noticeably faster data speeds (max of 19.2)
- USB hotsync
- unlimited use/access (Omnisky)
- larger screen

Cons:
- brick-like
- extemely finicky signal (easily lost)
- modem is buggy and can cause fatal errors/hard resets
- screen is totally washed out in direct sunlight
- carry two devices (cell phone)
- combo requires 2 chargers
- if not charge regularly, can end up with powered PDA and dead modem or vice versa, either way makes combo useless until can get to a charger


Pros for Samsung I300:
- obviously, only have to carry around ONE device
- drastically improved data coverage, more coverage and signal is not as finicky as the Minstrel CDPD signal, can move around freely and not lose signal (inlcuding at 70mph+ in a car)
- screen is not totally washed out in direct sunlight (somewhat useable)
- combo is very stable, haven't required hard or soft reset yet!
- one bill for voice and data
- phone can be used with included cradle as wireless modem for laptop right out of the box!
- only one charger
- if battery low/dies, simply pop in the extra included one and you're good to go, no need to worry if both PDA and modem have enough juice

Cons:
- serial hotsync
- somewhat (but definitely noticeably) slower data speeds (max is 14.4)
- significantly smaller screen, colors are definitely not as vibrant (not even close) as Prism's (IMO, screen is better than M505's but not better than IIIc's)
- no keyboard available yet
- data calls come out of voice minutes so no unlimited use (bad for things like wireless avantgo syncs or wireless hotsyncs)
- depending on use, battery only good 1-3 days


Conclusion:
If you are tired of carrying around two devices and are willing to make a few concessions (mainly screen real estate and quality), would definitely recommend the device. For me, the ability to actually keep the data signal while moving around (walking) instead of having to search for the signal (and then lose it once I find it) more than makes up for the I300's screen (which is pretty average for a color screen IMO).

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never used the other option you mention, but i am happy with the i300. having all in one thing is great for me.. thats the only way IMO... before phone/pdas were out, then the norm would be to see devices with attachments and whatnot.. but now, trhats old school.. sure the i300's screen may be limited (8 bit), but its new on the block and it will only get better... when that omnisky thingy you mentioned had first made it out on the scene, im sure something else that was already out was a little better at the moment... but all in all, i dont find any faults of the i300.. i like it.. just as i liked the 6035... i prepare for ther worse and hope for the best!

Agree...I was pleasantly surprised with the quality of the I300's screen. Not as bad as I was expecting (pretty decent actually). Just didn't want anyone contemplating the move to expect Prism/iPAQ screen quality.

If I am not mistaken the Palm/Minstrel combo does not include a phone...